| Similarity | Rank | |
|---|---|---|
| Friendster | 0.889 | 84667 |
| MySpace | 0.814 | 18155 |
| 0.812 | 1374 | |
| StumbleUpon | 0.811 | 57874 |
| 0.798 | 43870 | |
| Myspace | 0.784 | 31110 |
| Digg | 0.781 | 30156 |
| Gmail | 0.776 | 16215 |
| 0.774 | 61570 | |
| Hotmail | 0.767 | 39485 |
| micro-blogging | 0.765 | 78367 |
| 0.764 | 43972 | |
| Bebo | 0.760 | 63222 |
| social-networking | 0.759 | 88849 |
| GMail | 0.758 | 71260 |
| Tumblr | 0.758 | 23799 |
| Picasa | 0.751 | 47034 |
| 0.744 | 9270 | |
| Yahoo | 0.739 | 6222 |
| 0.738 | 2106 | |
| photo-sharing | 0.735 | 85019 |
| Blogspot | 0.731 | 99924 |
| Viber | 0.725 | 71794 |
| 0.723 | 36024 | |
| 0.721 | 1052 |