| Name | Description/Focus | Registered users | Registration | Alexa
(Apr 08) |
|---|
| Advogato | Free and open source software developers | | Open |
|---|
| ANobii | Books | | Open |
|---|
| aSmallWorld | European jet set and social elite | 270,000[2] | Invite-only |
|---|
| Badoo | General, Popular in Europe | | Open to people 18 and over | 106 |
|---|
| Bahu | General, Popular in France, Belgium, Poland and Europe | | Open to people 13 and over |
|---|
| Bebo | General, Popular in the US, UK, Ireland, New Zealand and the Pacific Islands | | Open to people 13 and over | 122 |
|---|
| BlackPlanet | African-Americans | | Open |
|---|
| Broadcaster.com | Video sharing and webcam chat | 322,715[3] | Open |
|---|
| Buzznet | Music and pop-culture | | Open |
|---|
| Cake Financial | Investing | | Open |
|---|
| Capazoo | General (blogs, photos, music, videos) | | Open |
|---|
| Care2 | Green living and social activism | | Open |
|---|
| Classmates.com | School, college, work and the military | | Open | 1,752 |
|---|
| Cloob | General. Popular in Iran. | | Open. |
|---|
| Consumating | "Consumeetings" | | Open |
|---|
| CouchSurfing | Hospitality | | Open |
|---|
| Cyworld | Young South Koreans | 2,100,000[4] | Open |
|---|
| Dandelife | Collective narratives or "shared biographies" | | Open |
|---|
| DontStayIn | Clubbing (primarily UK) | | Open |
|---|
| deviantArt | Online artistic community | | Open | 62 |
|---|
| Elfwood | Online artistic community | | Open |
|---|
| Experience Project | Life experiences | | Open |
|---|
| Facebook | General. Popular Worldwide. | | Open to people 13 and older. | 6 |
|---|
| Faceparty | General. Popular UK. | | Open to people 16 and older. | 2,603 |
|---|
| Flickr | Photo sharing | 9,600,000[5] | Open (Yahoo! login) | 39 |
|---|
| Flixster | Movies | | Open | 414 |
|---|
| Fotolog | Photoblogging. Popular in South America. | | Open | 13 |
|---|
| Friends Reunited | UK based. School, college, work, sport and streets | | Open | 10,490 |
|---|
| Friendster | General. Popular in Southeast Asia. | 58,000,000[6] | Open to people 16 and older. | 18 |
|---|
| Frühstückstreff | General | | Open |
|---|
| Gaia Online | Anime and games | | Open |
|---|
| Gather | Article, picture, and video sharing, as well as group discussions | | Open |
|---|
| Geni.com | Families, genealogy | | Open |
|---|
| Gossipreport.com | Anonymous gossip | | Open to people 16 and older |
|---|
| Grono.net | Poland | | Invite-only |
|---|
| GuildCafe | Online games | | Open |
|---|
| Habbo | General. Over 31 communities worldwide. Chat Room and user profiles. | | Open to people 13 and older | 4,281 |
|---|
| hi5 | General. Latin American and Asian teens. Popular in Cyprus and Romania. | 70,000,000[7] | Open to people 13 and older | 8 |
|---|
| Hospitality Club | Hospitality | | Open |
|---|
| Hyves | Most popular Dutch social network, especially for students | | Open |
|---|
| iLike | Music, Video, Photos, Blogs | | Open |
|---|
| imeem | Music, Video, Photos, Blogs | | Open |
|---|
| IRC-Galleria | Finland | 475,000[8] | Open to Finnish speaking people 12 and older |
|---|
| iWiW | Hungary | | Invite-only |
|---|
| Jaiku | General. Owned by Google. | | Open to people 13 and older |
|---|
| Joga Bonito | Football (soccer). Owned by Google. | | Open |
|---|
| kaioo | General, nonprofit | | Open |
|---|
| LibraryThing | Book lovers | | Open to people 13 and older |
|---|
| lifeknot | Shared interests, hobbies | | Open to people 18 and older. |
|---|
| LinkedIn | Business | 20,000,000[9] | Open | 211 |
|---|
| LiveJournal | Blogging | | Open (OpenID) | 69 |
|---|
| LunarStorm | Sweden | | Open |
|---|
| MEETin | General | | Open |
|---|
| Meetup.com | General | | Open to people 18 and older |
|---|
| MiGente.com | Latinos | | Open |
|---|
| Mixi | Japan | | Invite-only |
|---|
| mobikade | mobile community, UK only | | Open to people 18 and older |
|---|
| MocoSpace | mobile community, worldwide | 2,000,000[10] | Open to people 14 and older |
|---|
| MOG | Music | | Open to people ages 14 and older |
|---|
| Multiply | "Real world" relationships | | Open to people 13 and older |
|---|
| MyChurch | Christian Churches | | Open |
|---|
| MyHeritage | family-oriented social network service | | Open |
|---|
| My Opera Community | General (blogs, photo albums, forums, groups, etc.) | | Open |
|---|
| MySpace | General. Popular Worldwide. | 110,000,000[11] | Open to people 14 and older. | 5 |
|---|
| myYearbook | General | | Open to age 13 and up & Grades 9 and up |
|---|
| Nasza-klasa.pl | School, college and friends. Popular in Poland. | | Open |
|---|
| Nabuur | Online Volunteering | | Open |
|---|
| Netlog | Formerly known as Facebox. | | Open |
|---|
| Nettby | Norwegian Community. | | Open |
|---|
| Nexopia | Canada | | Open to people 14 and older |
|---|
| Odnoklassniki.ru | General. Popular in Russia | 10,000,000[12] | Open | 40 |
|---|
| OkCupid | Social networking and dating | | Open to people 18 and older |
|---|
| orkut | Owned by Google. Popular in Brazil and India. | | Open to people 18 and older, (Googlelogin) | 10 |
|---|
| OUTeverywhere | Gay/LGBTQ Community | | Open |
|---|
| Passado | General | | Open |
|---|
| Passportstamp | Travel | | Open |
|---|
| Phanfare | Family photo and video sharing | | Open |
|---|
| Plaxo | Business | | Open |
|---|
| Playahead | Swedish teenagers | | Open |
|---|
| Pingsta | Collaborative platform for the world's Internetwork Experts | | Invite-only, only Internet Experts |
|---|
| Pownce | Websites, files, and short updates | | Open |
|---|
| ProfileHeaven | British teens | | Open to people 13 and older |
|---|
| RateItAll | General (consumer ratings) | | Open |
|---|
| Ravelry | Knitting and crochet | | Invite-only while in beta |
|---|
| Reunion.com | Locating friends and family, keeping in touch | | Open |
|---|
| Ryze | Business | | Open |
|---|
| Searchles | Social search and networking | | Open |
|---|
| Sconex | American high schools | | Open |
|---|
| Sermo | Physicians | | Open only to D.O.s and M.D.s in US |
|---|
| Shelfari | Books | | Open |
|---|
| Soundpedia | Music | | Open |
|---|
| Sportsvite | Recreational sports | | Open |
|---|
| Stickam | Live video streaming and chat. | | Open |
|---|
| Student.com | International teens and colleges | | Open |
|---|
| StudiVZ | University students, mostly in the German-speaking countries | | Open |
|---|
| Tagged.com | General | | Open |
|---|
| TakingITGlobal | Social action | | Open |
|---|
| Taltopia | Online artistic community | | Open |
|---|
| TravBuddy.com | Travel | | Open |
|---|
| Travellerspoint | Travel | | Open |
|---|
| tribe.net | General | | Open | 5,195 |
|---|
| Tuenti.com | General. Very Popular in Spain | | Invitation only |
|---|
| Twitter | Micro-blogging, RSS, updates | | Open |
|---|
| V Kontakte | Russian social network. | | Open |
|---|
| Vox | Blogging | | Open |
|---|
| WAYN | Travel and lifestyle | | Open to people 18 and older | 828 |
|---|
| WebBiographies | Genealogy and biography | | Open |
|---|
| Windows Live Spaces | Blogging (formerly MSN Spaces) | | Open | 3 |
|---|
| Wis.dm | Questions and answers about anything and everything | | Open |
|---|
| Woophy | travel & photography, photo sharing website | | Open |
|---|
| Xanga | Blogs and "metro" areas | | Open |
|---|
| XING | Business | | Open |
|---|
| Yahoo! 360° | Linked to Yahoo! IDs | | Open to people 18 and older, (Yahoo!login) |
|---|
| Yahoo! Mash | Yahoo's new SNS - Still in beta | | Invite-only while in beta |
|---|
| Yelp, Inc. | Local Business Review and Talk | | Open |
|---|
| Zooomr | Universal photo sharing | | Open (OpenID)
|
|---|
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