| 1 | Facebook | 1 500 M | Generic: Photos, Videos, Blogs, Apps. |
| 2 | Qzone | 611 M | Generic (in Chinese only) |
| 3 | Twitter | 517 M | Generic: Micro-blogging, RSS, updates |
| 4 | Sina Weibo | 503 M | Generic: microblogging exclusively Chinese. |
| 5 | Google+ | 500 M | Generic: Photos, Videos, Blogs, Apps. |
| 6 | Tagged | 330 M | Generic |
| 7 | LinkedIn | 238 M | Professional Contacts |
| 8 | Vkontakte | 190 M | Generic: Photos, Videos, Blogs, Apps. (Very popular in Russia) |
| 9 | Renren | 178 M | Generic: Photos, Videos, Blogs, Apps. (Exclusively Chinese) |
| 10 | Badoo | 172 M | Datting Network |
| 11 | Instagram | 130 M | Mobile Photo Sharing |
| 12 | Habbo | 100 M | Generic: aimed at teenagers. |
| 13 | Douban | 100 M | Movies, Music and Books (Exclusively Chinese). |
| 14 | Flickr | 87 M | Photo Sharing |
| 15 | Netlog | 84 M | Generic: Photos, Videos, Blogs (Popular in Europe, Turkey) |
| 16 | MyHeritage | 75 M | Genealogy and Family |
| 17 | Pintrest | 70 M | Image Sharing / Photography |
| 18 | Odnoklassniki | 65 M | School Fellow Connections (Popular in Russia) |
| 19 | MyLife | 60 M | Generic: Personal Relationships |
| 20 | Classmates.com | 55 M | School Colleague Connections |
| 21 | Sonico | 55 M | Generic: (Popular in Latin America) |
| 22 | Viadeo | 50 M | Professional Contacts |
| 23 | Slideshare | 50 M | Sharing Presentations: PowerPoint, PDF, Keynote |
| 24 | Last.fm | 48 M | Music |
| 25 | Viddy | 39 M | Mobile Video Sharing |
| 26 | Orkut | 33 M | Generic: Photos, Videos, Blogs (Popular in Brazil) |
| 27 | Foursquare | 33 M | Personal Location Sharing, GPS |
| 28 | I drink | 30 M | Generic: Photos, Videos, Blogs |
| 29 | EDMODO | 29 M | Education: Teachers, Students and Parents |
| 30 | DeviantArt | 26 M | Photo and Illustration Sharing |