Name
|
Description or focus
|
Date launched
|
Registered users
|
Registration
|
Global Alexa[1] page ranking
|
Avaaz
|
Global community and political activism
|
2007
|
69,000,000
|
Open
|
N/A
|
Bebo
|
General
|
2005 [2]
|
117,000,000[3]
|
Open to people 13 and older
|
4,169[4]
|
BlackPlanet
|
Black Americans
|
1999
|
20,000,000[5]
|
Open
|
7,193[6]
|
Blind
|
Employees
|
2013
|
2,000,000[7]
|
Open with verified work email
|
43,680[8]
|
Busuu
|
Language learning community (headquartered in Madrid, Spain)
|
2008
|
12,000,000[citation needed]
|
Open
|
8,049[9]
|
Buzznet
|
Music and pop-culture
|
2005
|
10,000,000[10]
|
Open
|
6,955[11]
|
CafeMom
|
Mothers
|
2006
|
1,250,000[12]
|
Open to moms and moms-to-be
|
1,293[13]
|
Care2
|
Green living, social activism, animal rights
|
1998
|
9,961,947[14]
|
Open
|
1,930[15]
|
CaringBridge
|
Not for profit providing free websites that connect family and friends during a serious health event, care and recovery.[16]
|
1997
|
9,500,000[17]
|
Open to people 18 and older[18]
|
4,279[19]
|
Classmates.com
|
School, college, work and the military
|
1995
|
50,000,000[20]
|
Open to people 18 and older[21]
|
3,284[22]
|
CouchSurfing
|
Worldwide network for making connections between travelers and the communities they visit
|
2003
|
18,000,000[23]
|
Open
|
2,231[24]
|
Cyworld
|
General, popular in South Korea
|
1999
|
24,000,000[25]
|
Open
|
1,616[26]
|
delicious
|
Social bookmarking allowing users to locate and save websites that match their own interests
|
2003
|
8,822,921[27]
|
Open
|
436[28]
|
DeviantArt
|
Art community
|
2000
|
22,000,000[29]
|
Open to people 13 and older
|
131[30]
|
Duolingo
|
Language learning community and forums[31]
|
2011[citation needed]
|
500,000,000[32]
|
Open to all ages. Forums open to people 13 and older[33]
|
547[34]
|
Draugiem.lv
|
General (primarily Latvia, Lithuania, and Hungary)
|
2004
|
2,600,466[35]
|
Invitation only
|
2,698[36]
|
Douban
|
Chinese Web 2.0 website providing user review and recommendation services for movies, books, and music
|
2005
|
46,850,000[37]
|
Open
|
106[38]
|
DXY.cn
|
Chinese online community for physicians, health care professionals, pharmacies and facilities
|
2000[citation needed]
|
2,000,000[39]
|
Open
|
8,367[40]
|
Edmodo
|
Social learning network for schools
|
2008
|
50,000,000+[41]
|
Open to students, teachers and parents
|
2,367[42]
|
English, baby!
|
Students and teachers of English as a second language
|
2000
|
1,600,000[43]
|
Open
|
29,585[44]
|
Facebook
|
General
|
2004
|
2.8×10^9[45]
|
Open to people 13 and older
|
3[46]
|
Fetlife
|
People who are into BDSM
|
2008
|
1,200,000[47]
|
Open to people "of legal age to see adult content"
|
4,131[48]
|
Fishbrain
|
Mobile social network, fishing
|
2010
|
2,200,000[49]
|
Open
|
436,164[50]
|
Flixster
|
Movies
|
2007
|
63,000,000[51]
|
Open to people 13 and older
|
4,012[52]
|
Flickr
|
Photo sharing, commenting, photography related networking, worldwide
|
2004
|
32,000,000[53]
|
Open
|
48[54]
|
Fotki
|
Photo sharing, video hosting, photo contests, journals, forums, flexible privacy protection, friend's feed, audio comments and unlimited custom design integration
|
1998
|
1,632,565
|
Open
|
8,011[55]
|
Fotolog
|
Photoblogging, popular in South America and Spain
|
2002
|
20,000,000[56]
|
Open
|
3,168[57]
|
Foursquare
|
Location-based mobile social network
|
2009
|
20,000,000[58]
|
Open
|
817[59]
|
Friendster
|
General, popular in Southeast Asia and formerly in the western world
|
2002
|
90,000,000[60]
|
Open to people 16 and older
|
12,167[61]
|
Gaia Online
|
Anime and games, popular in the US, Canada and Europe, and moderately popular in Asia
|
2003
|
23,523,663[62]
|
Open to people 13 and older
|
6,277[63]
|
Geni.com
|
Families, genealogy
|
2007
|
15,000,000[64]
|
Open
|
5,958[65]
|
GetGlue
|
Social network for entertainment
|
2008
|
2,000,000[66]
|
Open
|
3,735[67]
|
Goodreads
|
Library cataloging, book lovers
|
2006
|
90,000,000[68]
|
Open
|
327[69]
|
GrabCAD
|
GrabCAD Community is the largest online CAD library, design and 3D printing tutorials, and a network of additive professionals
|
2009
|
11,000,000[70]
|
Open
|
N/A
|
Habbo
|
General for teens. Over 31 communities worldwide. Chat room and user profiles.
|
2000
|
268,000,000[71][72][73]
|
Open to people 13 and older
|
15,255[74]
|
hi5
|
General, popular in Nepal, Mongolia, Thailand, Romania, Jamaica, Central Africa, Portugal and Latin America
|
2003
|
80,000,000[75]
|
Open to people 13 and older
|
902[76]
|
Hyves
|
General, mostly popular in the Netherlands.
|
2004
|
10,097,000[77]
|
Open
|
2,243[78]
|
Instagram
|
General
|
2010
|
2×10^9[79]
|
Open
|
38[citation needed]
|
Itsmy
|
Mobile community worldwide, blogging, friends, personal TV-shows
|
2008
|
2,500,000[80]
|
|
770,100[81]
|
iWiW
|
Hungary
|
2002
|
4,000,000[82]
|
Invite-only
|
3,831[83]
|
Jiepang
|
Location-based mobile social network, in the Chinese language
|
2010
|
3,000,000[84]
|
Open
|
14,790[85]
|
Kiwibox
|
General
|
1999
|
2,400,000[86]
|
Open to people 13 and older
|
104,563[87]
|
Kobo
|
Reading platform and social network
|
2009
|
14,500,000[88]
|
Open
|
7,277[89]
|
Koofers
|
Social studying network for college students
|
2008
|
1,000,000[90]
|
Open
|
97,090[91]
|
Last.fm
|
Music
|
2002
|
30,000,000[92]
|
Open
|
772[93]
|
LibraryThing
|
Book lovers
|
2005
|
1,300,000[94]
|
Open to people 13 and older
|
10,800[95]
|
LinguaLeo
|
Online English language learning website, popular among the Russian-speaking diaspora
|
2010
|
3,749,061[96]
|
Open
|
7,480[97]
|
LinkedIn
|
Business and professional networking
|
2003
|
774,000,000[98]
|
Open to people 18 and older
|
12[99]
|
LiveJournal
|
Blogging, popular in Russia and among the Russian-speaking diaspora abroad
|
1999
|
17,564,977[100]
|
Open (OpenID)
|
115[101]
|
Livemocha
|
Online language learning
|
2007
|
5,000,000[102]
|
Open
|
4,100[103]
|
Mastodon
|
An open-source, self-hosted and globally interconnected microblogging community
|
2016
|
8,700,000[104]
|
Open, depends on the instance
|
NA
|
mixi
|
Japan
|
2000
|
24,323,160[105]
|
Open
|
232[106]
|
Miiverse
|
Social Network for Nintendo's Wii U home console and 3DS handheld family where users can post about games and ask for help on a particular game
|
2012
|
4,500,000
|
Nintendo Network members only
|
NA
|
MocoSpace
|
Mobile community, worldwide
|
2005
|
3,000,000[107]
|
Open to people 14 and older
|
9,882[108]
|
MyHeritage
|
Family-oriented social network service
|
2003
|
30,000,000[109]
|
Open
|
3,756[110]
|
MyLife
|
Locating friends and family, keeping in touch (formerly Reunion.com)
|
2002
|
51,000,000[111]
|
Open
|
1,765[112]
|
Myspace
|
General
|
2003
|
30,000,000+[113][114]
|
Open to ages 13 and older
|
161[115]
|
Nasza-klasa.pl
|
School, college and friends, popular in Poland
|
2006
|
11,000,000[116]
|
Open
|
75,145[117]
|
Netlog
|
General, popular in Europe, Turkey, the Arab world and Québec, Canada. Formerly known as Facebox, Bingbox and Redbox.[118]
|
1999
|
95,000,000[119]
|
Open to people 13 and older
|
2,621[120]
|
Nexopia
|
Canada
|
2003
|
1,400,000[121]
|
Open to people 13 and older[122]
|
25,241[123]
|
Odnoklassniki
|
Connecting with old classmates, popular in Russia and former Soviet republics
|
2006
|
45,000,000[124]
|
Open
|
65[125]
|
Open Diary
|
First online blogging community, founded in 1998
|
1998
|
5,000,000[126]
|
Open to people 13 and older
|
28,134[127]
|
Plaxo
|
Aggregator
|
2002
|
50,000,000[128]
|
Open
|
5,310[129]
|
Ravelry
|
Knitting and crochet
|
2007
|
6,700,000[130]
|
Open
|
5,189[131]
|
Reddit
|
Social news, link sharing and commenting
|
2005
|
50,000,000[132]
|
Open
|
8[133]
|
Renren
|
Significant site in China, known as 校内 (Xiaonei) until August 2009.
|
2005
|
160,000,000[134]
|
Open
|
95[135]
|
Sina Weibo
|
Social microblogging site in China
|
2009
|
300,000,000[136]
|
Open
|
28[137]
|
Skyrock
|
Social network in French-speaking world
|
2002
|
22,000,000[138]
|
Open
|
710[139]
|
Sonico.com
|
General, popular in Latin America and Spanish and Portuguese speaking regions
|
2007
|
50,000,000[140][141]
|
Open to people 13 and older
|
2,676[142]
|
SoundCloud
|
Repository of original music pieces and networking
|
2008
|
10,000,000[143]
|
Open
|
299[144]
|
Stack Overflow
|
Question and answer knowledge market site for programmers
|
2008
|
16,000,000[145]
|
Open to people 13 and older
|
41[146]
|
Steemit
|
Blockchain-based social networking
|
2016
|
1,300,000[147]
|
Open
|
5,577[148]
|
StudiVZ
|
University students, mostly in German-speaking countries. School students and those out of education sign up via its partner sites SchülerVZ and MeinVZ.
|
2005
|
17,000,000[149]
|
|
N/A
|
Tagged
|
General
|
2004
|
100,000,000[150]
|
Open
|
288[151]
|
Taringa!
|
General (primarily Argentina)
|
2004
|
11,000,000[152]
|
Open to people 13 and older
|
214[153]
|
TravBuddy.com
|
Travel
|
2005
|
1,588,000[154]
|
Open to people 18 and older
|
21,523[155]
|
Twitter
|
General, microblogging, RSS, updates
|
2006
|
330,000,000[156]
|
Open to all ages[157]
|
12[158]
|
Tylted
|
Mobile social game network[159]
|
2007
|
3,000,000[160]
|
Open to people 14 and older
|
737,508[161]
|
Vkontakte
|
General, including music upload, listening and search. Popular in Russia and former Soviet republics.
|
2006
|
208,833,674[162]
|
Open
|
38[163]
|
Vampirefreaks.com
|
Gothic and industrial subculture
|
1999
|
1,931,049[164]
|
Open to users 13 and over
|
21,052[165]
|
Viadeo
|
Global social and campus networking available in English, French, German, Spanish, Italian and Portuguese
|
2004
|
35,000,000[166]
|
Open/lift
|
435[167]
|
WAYN
|
Travel and lifestyle
|
2003
|
10,000,000[73]
|
Open to people 18 and older
|
1,367[168]
|
We Heart It
|
Image-based social network
|
2008
|
25,000,000[169]
|
Open to ages 13 and older
|
823[170]
|
WeeWorld
|
Teenagers – 10 to 17
|
2000
|
30,000,000[171]
|
Open to ages 13 and older
|
18,317[172]
|
Xanga
|
Blogs and "metro" areas
|
1999
|
27,000,000[173]
|
Open
|
3,943[174]
|
XING
|
Business (primarily Europe, specifically Germany, Austria, and Switzerland)
|
2003
|
11,100,000[175]
|
Open
|
270[176]
|