A system for organizing a content site so that articles preferred by a user (viewer) of the site are brought to the fore for easy access. The system observes the user's actions during the normal course of browsing through a content site, and creates a model of the user's preferences for various types...http://www.google.de/patents/US7567958?utm_source=gb-gplus-sharePatent US7567958 - Filtering system for providing personalized information in the absence of negative data
