| Top social networking sites in July 2007 | |||
| Audience, 000 | Growth | ||
| Site | July 2006 | July 2007 | YTY |
| Myspace.com | 46,025 | 61,259 | 33% |
| 8,508 | 19,505 | 129% | |
| Classmates Online | 11,196 | 12,661 | 13% |
| Windows Live Spaces | 7,422 | 8,863 | 19% |
| AOL Hometown | 8,902 | 7,298 | -18% |
| Reunion.com | 3,869 | 4,070 | 5% |
| Club Penguin | 1,094 | 4,024 | 268% |
| 1,099 | 3,960 | 260% | |
| AOL People Connection | 6,440 | 3,715 | -42% |
| Buzznet.com | 635 | 3,321 | 423% |
| Source: Nielsen//NetRatings | |||