BookCrossing.com – A community of users from over 130 countries who exchange books with each other at public places like cafes, parks etc.

Bookhopper.co.uk – Free community for UK residents to share used books with each other.

Bookins.com – Book sharing website that enables members to exchange used books with each other in real time.

BookMooch.com – An interesting concept where users can exchange books with others through points. Users gain points when they give books to others.

Booksalescout.com – Online community of users allowing them to sell books in the US.

ConnectViaBooks – A social networking site connecting book lovers and enabling them to discover other similar interests.

GoodReads – GoodReads is a book reader’s community enabling members to review, share books they have been reading.

PaperBackSwap.com – Users can share books amongst each other and only pay for the delivery charges.

Pazap.com – A book trade engine for students to buy and sell old books.

Read It Swap It – A free service that allows users to exchange books with others.

Revish – Revish is another community for book lovers, letting them review their favorite books, group up, or simply tell the world what they’re currently reading.

Shelfari – Shelfari is a popular social networking service for book lovers.

Business Networking & Professionals

AdvisorGarage – It is an online directory of advisers who are willing to assist budding entrepreneurs.

ArtBreak – ArtBreak is an artist community for sharing and selling artwork.

Blogtronix – Blogtronix promotes corporate social networking, enterprise 2.0 and wikis.

Commutal – Commutal is an online sharing platform for businesses to create media rooms, participate in domestic groups and share event happenings with each other.

CompanyLoop – An online co-working community for global businesses.

ConnectBeam – Connectbeam offers social networking specially designed for corporate users.

Decorati – An interior designer community enabling users to post items for sale and for exchange.

DoMyStuff – A good site for working professionals looking to find online assistants.

Doostang – An invite only career community for professionals.

Fast Pitch – It is a quickly growing business networking community in corporate world. Its online provides users with a one-stop shop network to market their business.

iKarma Inc. – iKarma is a specialist in providing customer feedback for organizations and professionals.

ImageKind – ImageKind is a community and marketplace for professional artists.

Jambo – Jambo lets you connect with your neighborhood friends.

Jigsaw – An online business card networking directory for users to establish contacts with each other. Each business card is listed with an email id and a contact number.

Konnects – Konnects enables members to create their own professional networking communities.

Lawyrs – A professional social networking community for lawyers.

Linkedin – LinkedIn is a professional social networking website for business users, one of the most popular such sites out there. Some aspects of it are free, but many are paid.

mediabistro.com – mediabistro.com is for professionals in content or creative industry.

Pairup.com – Pairup connects business travelers assisting them to travel together.

Ryze.com – A site for establishing new connections and growing networks. Connections for jobs, building career and making sales.

Spoke.com – Spoke offers access to business network of over 40 million people worldwide.

Visible Path – Visible Path helps organizations to integrate social networking into their existing tools.

WebCrossing Neighbors – It provides a private label social network with personal spaces and user groups.

XING – XING is a networking directory of business contacts powering relationships between business professionals allowing users to connect with each other.

Family

CafeMom – CafeMom is a social networking site for mothers to connect and share thoughts with each other.

CommonGate – A social networking platform that enables users to create their own social network for their friends, family or organization.

Family 2.0 – Family 2.0 helps you create your own family social network, you can add family members, send personalized emails and create event alerts.

Famiva – A premier social network to connect with family members and relatives in a secure environment.

Famster – A private secure social network for family members.

Geni.com – An exciting social networking site enabling members to create their family tree. Although it’s a relatively new site, it has grown tremendously fast, and has hundreds of thousands of users.

Genoom – Genoom creates a meeting place for its site users. They can create a family network by inviting their relatives and discover their past memories.

Kincafe – An ideal social network for families to connect with their beloved ones.

Kinzin – Kinzin is an online meeting place for families to share family events, photos, stories and recipes.

MayasMoM – A family networking site for parents.

Minti – A collaborative parenting site.

MomJunction – MomJunction allows mothers to find reliable answers to questions, create private spaces with friends and build communities.

MothersClick – MothersClick connects mothers in a neighborhood with each and provides parenting advice to them.

myfamily.com – An excellent way to connect with your family members.

OneGreatFamily.com – An online shared database with combined knowledge and data at a single place.

OurStory.com – OurStory enables users to share stories of their families with others.

Parentography – A social network offering advice and advice for families.

The Family Post – A sharing network for communication with family members.

Friends

43 Things – A tagging based social networking site. Users create accounts and list a number of goals or hopes and these are parsed based on similarity to goals of other users.

aSmallWorld – aSmallWorld is a private online community designed for individuals who would like to connect, re-connect to share similar thoughts with each other.

Badoo.Com – Badoo is a dynamic multi-lingual social networking site with innovative photo and video features that allows its users worldwide to gain an instant mass audience and interact both locally and globally.

Bebo – Bebo is a hugely popular site (especially in the UK), and similar in philosophy to MySpace. It allows users to communicate with their friends in multiple ways including blogging, sending messages and posting pictures.

Eons – An online gathering place for the elderly; most of the users are over the age of 50 years.

Facebook.com – Facebook is a social networking phenomenon connection people with their friends, family and other users with similar interests.

Faceparty – A UK based community social networking website. It started for youngsters but has now risen to popularity among all age groups.

Flingr – Flingr allows users to connect with all categories of friends – colleagues, college mates and school buddies.

Friendster – It is a popular global social network for finding new friends and developing friendships as well as searching old friends.

hi5 – Hi5 is a prominent social networking service in India with over 40 million users. However, Hi5 has recently experienced an upsurge beyond India and has shown increasing popularity in EU too.

Lovento – Lovento allows you to discover news friends and also find information about latest events.

Multiply.com – Multiply is a social networking website providing easy way to share digital media which includes photos, videos and music.

Mycool – Mycool enables members to find and share their interests with special groups.

MySpace.com – MySpace is an interactive social networking website consisting of personal profiles, blogs, groups, photos, music and videos. It’s currently the biggest social networking site out there, and while it might not be the most advanced one, the users seem to love its simplicity.

NetFriendships.com – A comprehensive social networking site enabling users to make new online friends and discover old ones.

Netlog – A social community of more than 20 million young Europeans.

Orkut – Orkut is a social networking service owned by Google. It enables users to meet new friends and create communities.

Passado – Passado is Europe’s no.1 re-union website connecting members with friends from school to workplace.

Piczo – Piczo offers safe social networking environment to youngster around the world. Piczo users can design their personal website with photos, videos etc. and share it with their friends.

Plazes – A social networking website for connecting with local users.

Pownce.com – Pownce is a mix of social networking and microblogging. It enables users to send messages, files, events and links with each other.

ProfileHeaven.com – A UK based social networking site for teenagers.

reunion.com – A leading online service for discovering old friends, classmates and family members.

Vox.com – Vox is a social blogging service where users share their ideas, photos, videos with family and friends.

Xanga – Xanga is one of the biggest social networking platforms with features of sharing photos, photos and videos.

XuQa – An online college social networking site with poker gaming features.

Hobbies & Interests

ActionProfiles.com – It is social networking community for sports and action. The features of the website are profiles of users with photographs and videos, reviews of products and job discussion boards.

Arts community – Arts community provides a dynamic community experience by providing extensive listing of exhibitions, events and openings.

BeGreen – BeGreen is a community that aims to generate environmental awareness for users.

beRecruited – beRecruited is a dedicated online community for sportpersons and coaches.

BottleTalk – BottleTalk is a wine lover’s community making it easy for members to share their drinking experiences.

CarGurus – An automobile community website enabling users to post car reviews, photos and share opinions.

Change – Change is a nonprofit social networking website that connects like minded users and allows them to exchange information.

ChangingThePresent – A nonprofit fund raising community with membership of over 400 nonprofits.

ChickAdvisor – ChickAdvisor is a sharing community for women users.

CircleUp – CircleUp is one of the best community website connecting users to groups, clubs for knowledge sharing, information exchange.

Coastr – Coastr connects beer lovers with each other.

ColShare – ColShare is a community for people who have hobby of collecting items like coins, stamps etc.

coRank – A rating community for users to share interesting information on internet.

DailyStrength – A huge community of over 500 groups dealing with health issues and various medical challenges.

Dundoo – Dundoo enables users to create image collages out of social networking profile. A big amount of ads on the site somewhat diminishes the overall impression.

Flixster – Flixster is a community for movie lovers.

FuelEmpire – FuelEmpire brings automobile enthusiasts together at one place.

GirlSense – A community for girls to promote their fashion designs & creations.

Greenvoice – An online networking platform for people who are conscious about the environment, who want to inform each other on environmental issues and create a difference.

iYomu – iYomu is an adult social networking website and it allows users to search for site members who have similar interests or for business needs.

Motortopia – Motortopia is community for automobile lovers. It consists of passionate lovers of bikes, planes, cars and boats etc.

MyCatSpace – MyCatSpace is a community for lovers of cats passionate to share experiences of their cats with others.

MyDogSpace – MyDogSpace users can share their dog pictures, write blog posts about dogs and communicate with other dog lovers, all in a very lovely community.

Uniteddogs – A social networking website for dog owners. The dog owners can creae profiles of their dogs, create blogs and share their thoughts.

vSocial – vSocial is a video based social networking platform allowing content owners, site operators to deliver the message online with video.

Language

Chaula – Chaula is a pronunciation dictionary created by the community and a social network where you can help other people learn your language.

FriendsAbroad – An online community of language learners speaking over 80 languages across 200 countries.

Huitalk – This is a language learning community where you can chat with other Huitalk members, access the article resource, and join the forums to learn new languages.

iTalki – Language exchange network wherein you can find a partner and practice speaking a foreign language using an instant messenger or iTalki’s text and voice chat tool.

Kan Talk – This site will help you learn English by conversing with other members and sharing questions, recordings, and videos.

Lingoz – Online dictionary created by the community and providing a resource for language questions.

LiveMocha – Another language learning community where you can enroll for language lessons, and practicing conversing with text and chat tools with other community members.

MyLanguageExchange – Find a partner to practice a new language with a native speaker.

Novlet – A collaborative story writing tool in several languages. You can also read stories written by other users.

Open Language Archives Community – Network of institutions and people who are creating an online language resources like data, tool, and advice to documentation and analysis of human language.

SharedTalk – Chat on voice or text with other members to learn new languages.

Speak Any Language – Forums, chat, and tools for learning foreign languages and interacting with people speaking foreign languages.

TalkBean – You can tutor language students or be a student on the TalkBean community. Students pay to get language lessons and tutors can get paid to teach.

TalkConmigo – Barcelona’s language exchange community.

Top Language Community – This is an online language community site for bilingual and multilingual people living in London, UK, and Ireland offering language jobs, dating, flat sharing, directory, events and forums.

TraduWiki – A wiki where members and readers contribute to translate documents and texts. You can submit your documents for translation in select languages.

UniLang – This is a community where people can discuss and find language resources, linguistics and translation.

WeLang – WeLang is an online language community where you can learn new languages and communicate with native speakers.

xLingo – xLingo is a language exchange online community where you can find partners across the world to learn new languages.

Media (Photo, Video & Audio)

YouTube – YouTube is the king of the video sharing sites, it has more users and videos than the others. Any video you can think of it probably already on YouTube.
Google Video – Since Google bought YouTube, Google’s Video player is mainly used for for-pay content like TV shows. Also there is a search here that indexes all of the video sharing sites on the internet (well, most of them).
Blip.tv – Blip.tv is the perfect video sharing site for video podcast makers. It’s designed to let them easily upload all types and qualities of media and then send them to their feed for the users. They also let you add ads to you video so you can make some money.
Ourmedia – A great site where you can upload audio, video, images, and text and share them with the world. The OurMedia community contains over 100,000 members.
Veoh – Watch long form, television quality content and publish your own videos.
DailyMotion – Video sharing platform with multiple video search options. You can join groups of people who publish videos based on a common interest.
Metacafe – A site that helps you discover the best videos through a community that filters, reviews and rates new videos every day.
UnCut – Video uploading and sharing community by AOL. Embed all the videos you want in your blog.
ClipShack – video sharing community that allows you to upload video clips, make friends, keep a collection of your favorite videos and comment on clips.
5min – Video sharing site with a particular vision: collecting videos that can visually explain anything in 5 minutes.
Brightcove – Search, click and watch. Music videos, news, travel, recipes, adventure. Thousands of channels, including the best in online video.
Viddler – Viddler lets add tags and comments to video that will show up at specific times. It also has unique features like flickr and twitter integration.
Revver – The first video sharing site that provides users with the possibility to earn money from the videos they upload.
Vimeo – Vimeo is a video sharing site that has an emphasis on it’s users. The video’s you find there are more likely to be home movies or shorts by aspiring film makers, and also a lot of lip dubs.
Yahoo Video – Yahoo’s version of online video. Similar to Google video, but done the Yahoo way.
HelpfulVideo – Share your knowledge and skills with others for free or little charge via video clips.
BroadbandSports – A video sharing site specifically for sharing sports related videos.
Travelistic – A video sharing site that allows users to post video content specific to travel.
Livevideo – Video sharing site that lets you create personal channels. Upload your own videos and share them with the world.
Kewego – A video sharing network where you can upload your own videos and view videos by others.
Godtube – It’s a Christian version of YouTube. All things Christian welcomed.
Coull.tv – An interactive twist to video, this site allows you to view video and add interactive elements to it by using your mouse.
Mediabum – Video sharing site focusing on funny videos.
VMIX – Another video sharing website; All content is screened, so be sure everything you upload is legit.
Grouper – Video sharing site with a big selection of content; enables you to create playlists and easily upload videos to MySpace.
Break – Break is a video site and more for comedic based content.
Videosift – a Digg-like site which lets you submit, vote, and comment on videos.
GeeVee – GeeVee is a video sharing site specifically for sharing videos of game play in video games.
Stage6 – A video site that uses the Divx player so you can upload High Definition video, of course this also means longer upload times, and you need DivX support (usually a browser plugin).
Tube Battle – vote for the best videos, organized by category.

Zorpia – Zorpia is like Myspace with some more photo features, you can upload you photos and share them on your profile.
Clickfriends -Document your life with your own digital photo essay, then share it with friends and family through ClickFriends.com. Now you can have the same site take care of your online photo albums and your Facebook or MySpace photo albums. Just upload your photos to the ClickFriends site, and then have them exported to your profile on your preferred social networking site. It´s free and easy to sign up.
Snappages – Snappages.com provides space for you to save and organize your photos, your online friends from virtual communities, and your events in one well-designed web page. It combines various web concepts, including online storage, file sharing, and Facebook-style friend communication.
Photorgy – Photorgy is photo uploading/sharing tool which works with AIM. Photo albums can be shared and owned by any number of friends, family members, and colleagues.
SlideShare – SlideShare is a content sharing site where you can host and display presentations. Maybe you would use it to show your professional work, or just for personal photo sharing, power point presentations about your latest entrepreneurial idea, or graphics you designed.
Zoomandgo – Contribute your travel photos, videos, or general advice to the Zoom and Go site, and they will reward you with cash. The site has a system of points which can be awarded to the content you submit according to what kind of content it is (written reviews receive less then photos, and videos receive the most).
Zooomr – Store, share, sort, sell, and search all your photos and those of other users at Zooomr. Users can post comments on individual pictures, therefore, gaining feedback on the photo, as well as gaining insight into the other photographers who use the site. Photos can be shared for free, or can be sold through the site.
BurstCast – Burstcast offers space for you to upload pics from your camera phone either by MMS or by e-mail, right from the phone. On the site, you can choose for your photos to be made public and shown on the home page (but it´s either all or nothing; you can´t have some photos be public and some private).
Mostrips – The photo sharing site is designed to let you create albums to be easily shared on mobile phones. It´s a useful way to send work if you are a photographer, or a head shot if you are a model or actor. Or it can just be a fun way to share photos from your vacations among friends and family.
DPhoto – DPhoto is a photo sharing service which offers well-designed graphics and a professional appearance. With DPhoto you can share your photos with friends and family in an ad-free, secure site.
Invitr – Invitr is a Flickr related application which simply extends your sharing capabilities. With Invitr you can share your Flickr photos with non-Flickr members; so photos that have been categorized as private can now be sent and shared with anyone you choose.
DigitalRailroad – Digital Railroad is aimed at aiding professional photographers connect with more fans and even help them connect to content providers and media companies who are looking to buy their work.
ContakMe – Contakme is a new site where you can upload an unlimited number of photos, create albums, and rate other people´s photos.
Flickr – The most popular photo sharing site. Upload photos, create sets and join one of the greatest communities of professional and unprofessional photographers.
Picasa – Google’s answer to photo sharing. The main application is a download, but there are also web albums.

iLike – a community that lets you discover new music based on you and your friends’ tastes.
PureVolume – a “MySpace for music”, albeit with a classier design.
ProjectPlaylist – popular site for sharing playlists and posting them to other social networks.
Imeem – another playlist-sharing community for artists and fans that also supports embedding of tracks on other social sites and blogs.
MP3.com – the famous music site is now a social network similar to MySpace Music.
iJigg – a place for indie bands and artists to post their music, which the users can download for free.
MOG – a place to share your music and video library and exchange thoughts on music with others.
Fuzz – discover new music; artists can sell their music, but there are also free songs to be found on the site.
eListeningPost – convert your tracks into preview files, then sell them and keep 94% of the profits.
ProjectOpus – Music community for indie bands, complete with widgets to post on MySpace and blogs.
Rapspace.tv – social networking for rap and hiphop.
Musocity – a music community with profiles for fans, artists, retailers and music venues.
Haystack – social networking, playlist sharing and band profiles.
Bandbuzz – find and rate music playlists in a Digg-like interface.
Midomi – find songs by humming or singing the tune. Then explore profile pages and network with others.
Buzznet – large pop culture community with news, videos, photos and member profiles.
JukeboxAlive – Upload music and share tracks with friends. Bands can sell their CDs, write a blog and post events to a calendar.
MusicHawk – track bands and see band-related news and reviews, as well as information on gigs and new releases.
ReverbNation – social network connecting bands, fans and venues.
MusicNation – find new music, watch music videos; if you’re an indie/unsigned artist, join for a chance to get exposure or even a record contract.
Grooveshark – an online service that rewards you for sharing, reviewing, and discovering new music (currently in private testing – enter you email address on the homepage to be notified of the launch).
Dopetracks – upload and share your tracks and beats, and record music online.
Funk Player – a music sharing community where authors can upload songs, while everyone can bookmark, select, listen and comment on them.
FIQL – social playlist sharing.
Soundflavor – create playlists and share them with other users; meet people with similar taste and discover new music.
FineTune – pick an artist and receive a custom playlist featuring music by that artists and other related artists.
MusicMobs – browse through playlists and create your own in a simple interface.

Buzdeo – Buzdeo provides secure video sharing service with friends and family.

Fotki – A photo sharing service enabling users to connect with friends.

Fotolog – A big online photo sharing community.

Music

Asoboo – Asoboo is a sharing network for cultural artists from around the world.

BandChemistry – A network for musicians uniting music bands all over.

BandWagon – BandWagon is a music community website for music fans to manage their web pages, profiles, videos and music.

CrackSpace – A common place for fans of hip-hop music.

Moob – A dedicated community of hip-hop fans.

MOG – An online community powering site members to discover music and music lovers.

Mobile

CrackBerry – A community dedicated to BlackBerry users.

Dodgeball – A New York based service facilitating social interactions through mobile phones.

Friendstribe.com – A mobile phone based social networking site.

GotZapp – A mobile social network for sharing images, audio and graphics with your friends’ mobile phones.

Groovr – An ultimate mobile social networking site for staying connected with friends. It is compatible with iPhone.

Jaiku – Jaiku is essentially a microblogging service with an SMS gateway, very similar to Twitter. They’ve recently been acquired by Google.

Loopt – Loopt is a cool mobile based friend locator website. It uses GPS to show its users the location of friends by updating maps on mobile handset.

Mixxer – Mixxer enables users to content on their mobile with site members.

Mobango – A mobile community service powering users to search for user generated music content, videos and other data.

Mozes – Mozes enables members to connect & socialize with each other through mobile phones.

Partysync – Partysync helps users to interact with people using mobiles.

Peepsnation – Peepsnation allows users with similar interests to connect with each other on location basis.

Rabble – A location based social networking service for mobile phone users.

Socialight – Socialight is a mobile based social networking site where users share their travel experiences with other mobile users.

Wattpad – A mobile phone social networking platform allowing users to discover, read and share their stories with each others.

Shopping

Crowdstorm - Crowdstorm is an innovative social shopping service using product buzz in the blogosphere to help you find what to buy. You can even add your own favorite products and edit ones already in their databases. Commenting on products and adding to wish-lists is really simple. All of this corroborates into a great social shopping and recommendations system.

Etsy - Etsy is a very nicely implemented, well designed social marketplace for handmade items. A more innovative eBay. The selection of items and active community contribute well to the overall shopping experience. Etsy is the place to look for unique handmade art, jewelery and much more.

Zebo - A simple site made for lists of what you already own, not what you want. Some users list generic items, others, more focused towards brand names. You can even input pictures, youtube videos, and myspace slideshows into your lists. Zebo also features fairly simplistic and straight-forward social-networking, which allows you to add yourself to various networks and invite your friends. Not sold on that color scheme though.

ThisNext - An interactive wish-list based shopping network with a recommendation system based on opinions from real people. You can add or recommend various products by entering their websites, or simply searching the service’s database. You can also create wish-lists with the direct ability to buy the items from ThisNext. The service also incorporates trackbacks so you can drive a little traffic to your blog if you so wish. Nevertheless, its main feature is still its recommendation system which tells you what to buy next, thus, ThisNext.

Kaboodle -Share product recommendations with the community and discover new stuff from users with similar tastes and styles. When you see something you’re interested in buying, just click the bookmarklet and it’ll fetch all of the necessary info; you can also browse what the community’s been bookmarking and comment on their bookmarklets. Just sold to Hearst Magazines this week.

Wists - Another wish-list creation service, Wists has the ability to create image bookmarks for anywhere on the web without uploading anything. After first adding your bookmarklets to your favorite items you can clip appropriate images and info from shopping sites to your Wists pages. A simple and effective application.

ShopWiki - ShopWiki is another community based, very “web 2.0-ish” wiki, all about products. It’s a good resource for quick background and price information on a wide-range of items.

Wisheus - Simple, shared wish-lists. A nice alternative to more feature-rich sites if wish-lists are all you want.

Woot - Woot provides you with one product daily for sale, and people in the forums participate in active feedback and comparisons using the available product allowing you to make educated shopping decisions. The active community contributes to your shopping experience.

BzzAgent - BzzAgent is a program meant to initiate word-of-mouth Buzz via the delivery of free product samples to a developed list of volunteer candidates. In doing so, companies benefit from viral buzz.

Wishpot - Allows you to easily create product wish-lists and share them with the community. Wishpot allows you to add items to your list by performing either an internal site search or using the browser clipping utility. The internal site-search also happens to be powered by shopping.com, which allows for many more advanced search features, including search by price or category. Wishpot also features mobile integration which enables you to add items to your list from your cell phone, or take a snapshot of an item and add it that way, also from your mobile phone. Another features that adds value to the service is inclusion of user information for better results and recommendations.

Buzzilions - Buzzilions is a shopping review site based on reviews by “actual buyers”. It offers some great, unique features, such as Buzzilions’ Affinity Recommendations, which takes key points from your profile and matches you with other members using your product choices as a basis. Overall, Buzzilions is a viable option for consumers to begin product comparisons before buying.

Stylehive - Build your own “hive” of your favorite products and share it with the community. While it’s quite similar (and inevitably so) to many of the above, what sets it apart is its great use of item metadata and its effective use of images. For example, when a page is bookmarked, images are automatically included.

Glimpse - Glimpse is a fashion resource site for women including featured articles in addition to an active marketplace of the latest looks. With Glimpse, it’s easy to find trendy clothes and stay up to date on all the latest looks. You have the ability to save items from the marketplace into a wish-list of sorts. Those items can be sent to friends bought through the marketplace, or placed on sale alert, when you will be notified whenever the item goes on sale.

StyleFeeder - An online “shopping companion” which assists you in shopping socially in real time, lets you see your “styletwins”, gives you product recommendations and allows you to build wish-lists. StyleFeeder boasts its celebrity wishlists, too, featuring the likes of 50 Cent.

ShopStyle - The more high-end of these services, ShopStyle features an active designer marketplace. Overall, a well-integrated one-stop-shop for all your designer fashions.

Reesycakes - Reesycakes is yet another integrated shopping community, but with one additional feature: coupon codes. Not only that, but Reesycakes also offers great shopping guides and a comprehensive marketplace.

Osoyou - Osoyou is a women’s social-network based on shopping. Features include personalized product suggestions and other elements of social shopping. While the service hasn’t officially launched, you can still sign up and be notified when it actually does.

3LUXE – A community generated product research site.

AgentB – A common place to find out the best shopping deals on internet.

bringsome.com – A global goods delivery platform enabling community members to assist each other with access to best items from across the world.

boxedup.com – Boxedup.com users add their favorite products to their list and share it with others.

CoWorkersAds – An online marketplace listing allowing site members to discover and sell items among coworkers community.

iliketotallyloveit.com – A user generated marketplace where users submit cool products.

MyItThings.com – A user generated magazine for shopping.

MyStore.com – A social market place for buyers and sellers.

Productwiki.com – ProductWiki is a common place for users to share information about consumer products.

RedFlagDeals.com – RedFlagDeals.com is Canada’s most popular shopping community which offers huge discounts to site users.

Sale Grab – SaleGrab is a social shopping site for best sales and discount deals.

Shoppero – Shoppero offers profit sharing to site users for writing product reviews.

Smashing Darling – A collaborative market place connecting buyers and sellers at one place.

Social BookMarking

i89.us – Export to several formats, see popular & recent bookmarks, ability to shorten URLs.

AllMyFavorites.net – Create an organized page for your bookmarks that you can share with friends and family, access from any computer.

Backflip.com – Check out the most popular links each day, set “The Daily Routine” as your homepage so you can visit your must stop sites each day with ease.

BibSonomy.com – Public & private bookmarks, tag cloud, related tags, duplicate detection with the chance to merge their info.

BlinkPro.com – Dynamic folders, bookmark all links of a page plus all the usual features.

BlogMarks.net – Save your bookmarks, tag them with keywords for easy searching amongst your list, share with others.

Bluedot.us – Tabbed user page showing a network of friends, bookmarks, and related tags. Allows you to import contacts from all the major mail services such as GMail and Yahoo.

BmAccess.net – Bookmark a site, add tags, when you look up a tag, you get the names and a little thumbnail image of the site along with it.

BuddyMarks.com – Store your bookmarks online, share some or all of them, discover new sites to visit by searching the public bookmark area.

Chipmark.com – Browse random “chipmarks”, share them, sort, filter, and get personal recommendations.

Complore – 10MB of file storage, public & private sharing, tag cloud, popular feeds and more.

Connectbeam.com – A themed social bookmarking site for enterprise-scale business.

Connectedy – Import your bookmarks, batch edit them, check in on hot topics.

Connotea.org – A themed social bookmarking site specifically for researchers, clinicians and scientists.

Diigo.com – Highlight portions of a page, write on it like you would a piece of paper, share with your group, and search all publicly saved pages.

Excites.com – Organize your bookmarks by tags, add comments and notes, share publicly, subscribe to certain tags so you can be notified when a new site is added that may interest you.

Feedmelinks.com – All the usual social bookmarking goodies, but you can also add links via email.

GetBoo.com – Export your folders to HTML, import and remove duplicates, delete all bookmarks.

Givealink.org – Donate your bookmarks to this site to help them recommend sites and get a better understanding of how each person bookmarks.

Hyperlinkomatic.com – Import/export, categories, notes, sharing, block users, RSS, tags.

IKeepBookmarks.com – Folders, search folder names and more.

Lilisto.com – Ratings, notes, categories, smart categories and in-page editing.

Linkroll.com – Links open in new window, subscribe to tags, browse by archives.

Ma.gnolia.com – Discuss all the saved bookmarks in groups, see what the Featured Linker is all about, join discussions in the Hot Group.

Mister-Wong.com – Bookmark and tag, search for tags that interest you, make buddies with people who have interesting saved sites.

Netvouz.com – Save your bookmarks in folders, tag them with keywords, share them with others or password protect them.

Nextaris.com – Folders, tags, clippings; store up to 100MB for free.

Shadows.com – Share your already existing bookmarks, discuss and rate sites and see what you can find.

SocialBookmarking.org – User and global tag cloud, blogs, social networking, avatars and more.

StumbleUpon.com – Lets you “channel surf” the Internet and review sites; it learns what you like and recommends more of the same.

Unalog.com – A basic social bookmarking site, but with the ability to look back at specific days and see what was going on.

WireFan.com – You can vote on links as well as add thumbnails for sites.

Xilinus.com – Tags, rating, search, public & private listing, drag-and-drop sorting.

Yahoo! My Web – One button click adds your bookmarks to the search engine giants system, features duplicate detection to help you keep your bookmarks tidy.

Social Bookmarking Sites With Clipping

BlinkList.com – Save sites for later reading, share your list or keep it private, even send your saved pages to your blog for wider sharing.

Clipclip.org – Like an online scrapbook, you clip out the part of the site you want, then share it with whomever you want, and discover new places to visit.

Clipmarks.com – Allows you to clip just the chosen bits of a webpage, save them to the main website, or even insert them into your own blog. Think of it as fancy block quoting.

del.icio.us – You add your bookmarks and access them from anywhere. Check out what others are saving and see where it takes you.

Furl.net – Not only can you do the standard bookmarking and sharing, you can save archived versions of a webpage and even export all your saved pages to a ZIP file.

Linktopia.com – Keep private, share, mark as friends only, edit bookmark dates.

RawSugar.com – Can cluster your tags for you based on recommendations by other users.

Simpy.com – This social bookmarker does all the usual plus detects links that have changed, and distributes your bookmarks via your blog’s RSS if you like.

Spurl.net – You can upload your existing bookmarks to get started, add more for centralized access, check out hot lists and recommendations.

SyncOne.net – All the usual features plus the ability to add your own Google Ads to the top of your profile page.

URLex.info – Inbox, group creation, directory, all of the usual features, plus being able to send your RSS feed to the site.

Social News

Blog-buzz.com – Similar to Digg, but for blog posts.

Digg.com – Synonymous with social bookmarking: you Digg a story, others Digg it, the more popular it gets the better chance it has of hitting the first page.

Netscape.com – A former contender in the browser wars, and the “mother” of Mozilla, it’s now a a social news aggregator with voting of stories similar to Digg.

Newsvine.com – Users can write articles on current news events, save links to external content; vote, comment and chat on article pages created by both users and by journalists.

Reddit.com – You vote up or down on a story making it move around on the home page.

Shoutwire.com – Similar to Digg, except instead of “Digging a story”, you “shout it”. Still a way to vote on unique Internet news stories.

Thoof.com – Add news stories you find interesting, anyone can “improve” the article by fixing the URL, editing the summary and more.

Students

AlumWire – AlumWire has been created to assist college students, alumni with professional opportunities.

B4Class – A social network for high school and college students.

Campusbug – A college student social networking website.

CampusRank – CampusRank members select and rate their old school friends and group them into various categories.

College.com – An online community for college students.

CollegeMedium.com – A student classifieds website for buying and selling items, jobs search etc.

College Tonight – A great place to meet fellow college students and alumni.

DormItem.com – A local classifieds listings for schools in various cities.

Graduates.com – A social networking site assisting graduate school students to stay in touch post completion of course.

Half.com – A leading student market place for buying and selling textbooks at discounted prices.

iHipo – An international community for college students and business professionals looking for networking opportunities.

LocalSchools – A networking site connecting students with local US colleges and universities.

Pazap.com – A student trading site for buying and selling on-campus books with other students.

Quizilla – Quizilla is a social network for young teens.

RateMyProfessor.com – RateMyProfessor connects students aspiring to study similar courses by assisting each other.

Student.com – Student.com is a big online community for college students, high school students and teens with around 1,000,000 members.

Studentbid.com – Studentbid.com is a student market place for sales and purchase of items without any fees.

StudentSN.com – A social network allowing users to create home pages with contact information, personal information and photo albums.

Uloop.com – Uloop allows students to trade textbooks, promote community events and do host of other activities.

Travel & Locals

Amicoz.com – Amicoz is slightly different from conventional social networking sites; it doesn’t have some of the common features found on socnets. It is dedicated to assist users in sharing their travel experiences, nothing more, nothing less.

Citizenbay – Citizenbay is a user community for discovering local information.

CityTherapy – CityTherapy is an easy way to find and share places of interest (restaurant, bars) in Europe.

CouchSurfing – A global travel network connecting travelers with local communities.

fatdoor.com – A fun and an interactive way to connect with the folks from your neighborhood online.

Going.com – A fun way to interact with people locally.

iloho – An online travel community with similarity to social bookmarking services like digg.

MatchActivity – A site connecting people on the basis of their activities. Users can find things to do and join people in their area.

Matador – A travel based social network with an integrated blogging service.

myTripbook.com – myTripbook.com is a place for people who want to share their travel experiences through photos, videos and blogging with others.

OurFaves – OurFaves is a community of urban savvy folks who enjoy the Toronto city and find out cool places to hang out at.

Outside.in – A nice way to explore local communities to keep track with neighborhood news.

Rummble – Rummble enables users to discover as well as share places of interest in your neighborhood.

TravBuddy – TravBuddy is a cool site for sharing travel experiences, finding new travel friends or reading travel reviews of fellow friends.

Travellerspoint – An international meeting point for worldwide travelers.

TravelTogether – A travel based social networking service enabling users to share travel plans, travel deals and experiences.

tribe.net – Tribe.net is one of the easiest ways to connect with people for finding a restaurant, a killer apartment, a gentle dentist or a hiking friend.

TripUp – A travel community site for finding travel information and planning for trips.

Triporama- Triporama provides an easy way to plan and collaborate on group trips.

VibeAgent – VibeAgent is a site about hotel reviews, travel meta-search and social networking.

WAYN – A social networking website uniting world wide travelers.

WeExplore – WeExplore provides an online platform for volunteers and travelers from all over the globe.

Wikitravel – Wikitravel is dedicated project for creating a trusted, up-to-date travel guide. It has over 16,641 travel destination guides maintained and written by Wikitravellers from around the world.

Zoodango – Zoodango is a website enabling users to connect with urban professionals either online or face-to-face at local venues.