| Similarity | Rank | |
|---|---|---|
| online_community | 0.758 | 21417 |
| social_network | 0.659 | 5305 |
| virtual_world | 0.647 | 17622 |
| social_networking | 0.619 | 13988 |
| online_environment | 0.616 | 77609 |
| virtual_space | 0.613 | 66084 |
| collective_intelligence | 0.592 | 77275 |
| social_networking_site | 0.590 | 28800 |
| online_forum | 0.589 | 57809 |
| Web_[number] | 0.582 | 19194 |
| user-generated_content | 0.566 | 90258 |
| social_community | 0.564 | 84234 |
| learn_community | 0.562 | 33552 |
| cyberspace | 0.560 | 31066 |
| discussion_board | 0.557 | 54243 |
| social_capital | 0.556 | 21130 |
| online_world | 0.554 | 55280 |
| social_platform | 0.553 | 72814 |
| Second_Life | 0.549 | 29728 |
| social_world | 0.549 | 57419 |
| online_communication | 0.547 | 71028 |
| collaborative_learning | 0.544 | 65435 |
| discussion_forum | 0.539 | 29465 |
| chatroom | 0.537 | 88528 |
| online_discussion | 0.536 | 62629 |