Yahoo patents granted on 15 September 2009

3 US patents granted on 15 September 2009 and assigned to Yahoo

1 7,590,711 Method and apparatus for assisting with playback of remotely stored media files
2 7,590,616 Collaborative-filtering contextual model based on explicit and implicit ratings for recommending items
3 7,590,615 Systems and methods for providing cross-vertical profiling and searching