| Social Networking | PR | Alexa Rank | Type | Submit | |
| Twitter.com | 9 | 10 | free | Submit | |
| Stumbleupon.com | 8 | 160 | free | Submit | |
| Tumblr.com | 8 | 92 | free | Submit | |
| Anobii.com | 7 | 11,529 | free | Submit | |
| Friendster.com | 7 | 718 | free | Submit | |
| Classmates.com | 7 | 1,677 | free | Submit | |
| Care2.com | 7 | 2,032 | free | Submit | |
| Flixster.com | 6 | 3,016 | free | Submit | |
| Gaiaonline.com | 6 | 2,394 | free | Submit | |
| Advogato.org | 6 | 122,819 | free | Submit | |
| Plurk.com | 0 | 1,183 | free | Submit | |
| Myyearbook.com | 0 | 1,384 | free | Submit | |
| Hi5.com | 0 | 138 | free | Submit | |
| Xing.com | 0 | 214 | free | Submit | |
| Jaiku.com | 0 | 12,439 | free | Submit | |
| Tagged.com | 0 | 222 | free | Submit | |
| Academia.edu | 0 | 18,002 | free | Submit | |
| Myspace.com | 0 | 38 | free | Submit | |
| Delicious.com | 0 | 250 | free | Submit | |
| Digg.com | 0 | 126 | free | Submit | |
| Xanga.com | 0 | 1,880 | free | Submit | |
| Blackplanet.com | 0 | 3,140 | free | Submit | |
| Reunion.com | 0 | 12,430 | free | Submit | |
| Badoo.com | 0 | 135 | free | Submit | |
| Skyrock.com | 0 | 412 | free | Submit | |
| Facebook.com | 0 | 2 | free | Submit | |
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