Relevance
http://drupal.org/project/relevance
Content Recommendation Engine
類似コンテンツを推薦
http://drupal.org/project/cre
Browsing History Recommender
http://drupal.org/project/history_rec
Recommender API
http://drupal.org/project/recommender
User matching
http://drupal.org/project/usermatch
Node Matching API
http://drupal.org/project/matchapi
Recommendation/Subscription
http://drupal.org/project/recommendation
