Yahoo patents granted on 04 October 2011

4 US patents granted on 04 October 2011 and assigned to Yahoo

1 8,032,535 Personalized web search ranking
2 8,032,510 Social aspects of content aggregation, syndication, sharing, and updating
3 8,032,508 System and method for URL based query for retrieving data related to a context
4 8,032,471 System and method for annotating and analyzing reviews with inferred analytics