SimilarityRank
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