43 Things |
Tagging |
&&&&&&&&01007433.&&&&001,007,433[1] |
Open |
Advogato |
Free Software and Open Source developers |
&&&&&&&&&&011000.&&&&0011,000[2] |
Open |
Amina - Chechen Republic Online |
Chechens |
&&&&&&&&&&&03500.&&&&003,500+[3] |
Open |
aSmallWorld |
European jet set and social elite |
&&&&&&&&&0150000.&&&&00150,000[4] |
Invite-only |
BlackPlanet.com |
African-Americans |
&&&&&&&016000000.&&&&0016,000,000[5] |
Open |
Bebo |
Schools and colleges |
&&&&&&&034000000.&&&&0034,000,000[6] |
Open |
Blue Dot |
Link sharing |
&&&&&&&&&&080000.&&&&0080,000[7] |
Open |
Broadcaster.com |
Video sharing and webcam chat |
&&&&&&&026000000.&&&&0026,000,000[8] |
Open |
Bolt |
General (music and video) |
&&&&&&&&04000000.&&&&004,000,000[9] |
Open |
CarDomain |
Car enthusiasts |
&&&&&&&&01600000.&&&&001,600,000[10] |
Open |
Care2 |
Green living and activism |
&&&&&&&&07151375.&&&&007,151,375[11] |
Open |
Classmates.com |
School, college, work and the military |
&&&&&&&040000000.&&&&0040,000,000[12] |
Open |
Consumating |
"Consumeetings" |
&&&&&&&&&&021000.&&&&0021,000[13] |
Open |
Couchsurfing |
"Couchsurfing" |
&&&&&&&&&0192000.&&&&00192,000[14] |
Open |
Cyworld |
Young South Koreans |
&&&&&&&015000000.&&&&0015,000,000[15] |
Open |
Dandelife |
Collective narratives or "shared biographies" |
&&&&&&&&&&&&&&-1.1000000Unknown |
Open |
DeadJournal |
"Dark" blogs, based on LiveJournal |
&&&&&&&&&0490310.&&&&00490,310[16] |
By invite or payment (OpenID) |
Dodgeball.com |
Mobile location-based service, owned by Google |
&&&&&&&&&&&&&&-1.1000000&&&&&&&&&&&&&&-1.1000000Unknown[17] |
Open |
DontStayIn |
Clubbing (primarily UK) |
&&&&&&&&&0235000.&&&&00235,000+[18] |
Open |
Doostang |
Careers |
&&&&&&&&&&053000.&&&&0053,000[19] |
Invite-only |
Ecademy |
Business |
&&&&&&&&&0100000.&&&&00100,000[20] |
Open |
eSPIN |
Teen Dating |
&&&&&&&&03800000.&&&&003,800,000[21] |
Open |
Facebook |
College/High School students and General |
&&&&&&&023000000.&&&&0023,000,000[22] |
Open |
Faceparty |
British teens and 20-somethings |
&&&&&&&&05900000.&&&&005,900,000[23] |
Open to people 16 and older. |
Flirtomatic |
Flirting/Dating |
&&&&&&&&&0265000.&&&&00265,000[24] |
Open to people 18 and older. |
Flickr |
Photo sharing |
&&&&&&&&04000000.&&&&004,000,000[25] |
Open (Yahoo! login) |
Fotki |
Photo sharing |
&&&&&&&&01000000.&&&&001,000,000[26] |
Open |
Friends Reunited |
School, college, work, sport and streets |
&&&&&&&012000000.&&&&0012,000,000[27] |
Open |
Friendster |
General |
&&&&&&&029100000.&&&&0029,100,000[28] |
Open |
Frühstückstreff |
General |
&&&&&&&&&&011600.&&&&0011,600[29] |
Open |
FUPEI |
General (Photo, Video, Music, Games, Event, and Chat Room), membership mostly from Indonesia |
&&&&&&&&&&053000.&&&&0053,000[30] |
Open |
Gaia Online |
Anime and Games |
&&&&&&&&07000000.&&&&007,000,000[31] |
Open |
Geni.com |
Families, genealogy |
&&&&&&&&&0100000.&&&&00100,000[32] |
Open |
GoPets |
Virtual pets |
&&&&&&&&&0400000.&&&&00400,000[33] |
Open |
Graduates.com |
School, college, and work |
&&&&&&&&&0650000.&&&&00650,000[34] |
Open |
Grono.net |
Poland |
&&&&&&&&&0830000.&&&&00830,000[35] |
Invite-only |
Hi5 |
General |
&&&&&&&050000000.&&&&0050,000,000[36] |
Open |
Hyves |
General Dutch social networking website. |
&&&&&&&&03266581.&&&&003,266,581[37] |
Open |
imeem |
Instant messaging |
&&&&&&&&&&&&&&-1.1000000&&&&&&&&&&&&&&-1.1000000Unknown[38] |
Open |
IMVU |
3D chat software |
&&&&&&&&01000000.&&&&001,000,000[39] |
Open |
IRC-Galleria |
Finland |
&&&&&&&&&0400000.&&&&00400,000[40] |
Open |
iWiW |
Hungary |
&&&&&&&&01500000.&&&&001,500,000[41] |
Invite only |
Joga Bonito |
Football (soccer) |
&&&&&&&&&&&&&&-1.1000000Unknown |
Open |
Last.fm |
Music |
&&&&&&&015000000.&&&&0015,000,000[42] |
Open |
LinkedIn |
Business |
&&&&&&&011000000.&&&&0011,000,000[43] |
Open |
LiveJournal |
Blogging |
&&&&&&&012900000.&&&&0012,900,000[44] |
Open (OpenID) |
LunarStorm |
Sweden |
&&&&&&&&01200000.&&&&001,200,000[45] |
Open |
MEETin |
General |
&&&&&&&&&&072000.&&&&0072,000[46] |
Open |
Meetup.com |
General |
&&&&&&&&02000000.&&&&002,000,000[47] |
Open |
MiGente.com |
Latinos |
&&&&&&&&03600000.&&&&003,600,000[48] |
Open |
Mixi |
Japan |
&&&&&&&&08000000.&&&&008,000,000[49] |
Invite-only |
MOG |
Music |
&&&&&&&&&&&&&&-1.1000000Unknown |
Open |
Multiply |
"Real world" relationships |
&&&&&&&&04000000.&&&&004,000,000[50] |
Open |
My Opera Community |
General (blogs, photo albums, forums, etc.) |
&&&&&&&&&0813122.&&&&00813,122[51] |
Open |
MySpace |
General |
&&&&&&0176500000.&&&&00176,500,000[52] |
Open |
myYearbook |
General |
&&&&&&&&&0950000.&&&&00950,000[53] |
Open |
Netlog |
European young adults (14-24). Formerly known as Facebox. |
&&&&&&&018000000.&&&&0018,000,000[54] |
Open |
Nexopia |
Canada |
&&&&&&&&01019372.&&&&001,019,372[55] |
Open |
orkut |
Owned by Google |
&&&&&&&046423762.&&&&0046,423,762[56] |
Open (Google login) |
Passado |
General |
&&&&&&&&04700000.&&&&004,700,000[57] |
Open |
Piczo |
Teenagers, Canadians, photo sharing |
&&&&&&&010000000.&&&&0010,000,000[58] |
Open |
Playahead |
Swedish teenagers |
&&&&&&&&&0530000.&&&&00530,000[59] |
Open |
ProfileHeaven |
British teens |
&&&&&&&&&0100000.&&&&00100,000[60] |
Open |
RateItAll |
Consumer ratings + social networking |
&&&&&&&&&&&&&&-1.1000000Unknown[61] |
Open |
Reunion.com |
Locating friends and family, keeping in touch |
&&&&&&&028000000.&&&&0028,000,000[62] |
Open |
Ryze |
Business |
&&&&&&&&&0250000.&&&&00250,000[63] |
Open |
Sconex |
American high schools |
&&&&&&&&&0500000.&&&&00500,000[64] |
Open |
Sportsvite |
Recreational Sports |
&&&&&&&&&&018000.&&&&0018,000[65] |
Open |
Studivz |
University students, mostly in the German-speaking countries |
&&&&&&&&&&&&&&-1.1000000Unknown |
Open |
Stumbleupon |
Websurfing |
&&&&&&&&01200000.&&&&001,200,000[66] |
Open |
TagWorld |
General (tagging) |
&&&&&&&&01850692.&&&&001,850,692[67] |
Open |
TakingITGlobal |
Social action |
&&&&&&&&&0145000.&&&&00145,000[68] |
Open |
The Doll Palace |
Cartoon dolls and dress up games |
&&&&&&&&02500000.&&&&002,500,000[69] |
Open |
The Student Center |
Teens and colleges |
&&&&&&&&&0800000.&&&&00800,000[70] |
Open |
The Zooplex |
General |
&&&&&&&&&&&&&&-1.1000000Unknown |
Open |
Threadless |
Custom T-shirts |
&&&&&&&&&0364474.&&&&00364,474 |
Open |
Travellerspoint |
Travel |
&&&&&&&&&&090000.&&&&0090,000[71] |
Open |
Tribe.net |
General |
&&&&&&&&&0602876.&&&&00602,876 [72] |
Open |
Twitter |
Update friends with your status through SMS, IM, web interfaces |
&&&&&&&&&&&&&&-1.1000000Unknown[73] |
Open |
Vampire Freaks |
Gothic industrial culture |
&&&&&&&&&0766000.&&&&00766,000[74] |
Open |
Vox |
Blogging |
&&&&&&&&&&&&&&-1.1000000Unknown |
Open |
WAYN |
Travel & Lifestyle |
&&&&&&&&08000000.&&&&008,000,000[75] |
Open to people 18 and older |
WebBiographies |
Genealogy & Biography |
&&&&&&&&&&&&&&-1.1000000&&&&&&&&&&&&&&-1.1000000Unknown[76] |
Open |
Windows Live Spaces |
Blogging (formerly MSN Spaces) |
&&&&&&0120000000.&&&&00120,000,000[77] |
Open (Windows Live ID) |
Xanga |
Blogs and "metro" areas |
&&&&&&&040000000.&&&&0040,000,000[78] |
Open |
XING |
Business |
&&&&&&&&02000000.&&&&002,000,000[79] |
Open |
Xuqa |
Colleges |
&&&&&&&&01000000.&&&&001,000,000[80] |
Open |
Yahoo! 360° |
Linked to Yahoo! IDs |
&&&&&&&&04700000.&&&&004,700,000[81] |
Open to people 18 and older
(Yahoo! login) |
Yelp |
United States adults |
&&&&&&&&&&&&&&-1.1000000Unknown |
Open |
Zaadz |
Social consciousness |
&&&&&&&&&&050178.&&&&0050,178[82] |
Open |
Zooomr |
Universal Photo Sharing |
&&&&&&&&&&&&&&-1.1000000Unknown[83] |
Open (OpenID) |