Personalized RSS feeds that are created for a user based on information associated with the user are generally unique and initially empty. By creating a generic RSS feed for receiving generic content items, the personalized RSS files can be pre-populated by copying the generic contents into the personalized...http://www.google.de/patents/US7853655?utm_source=gb-gplus-sharePatent US7853655 - Individualized RSS feeds with archives and automatic cleanup
