Yahoo patents granted on 29 July 2008

5 US patents granted on 29 July 2008 and assigned to Yahoo

1 7,406,529 System and method for detecting and verifying digitized content over a computer network
2 7,406,501 System and method for instant messaging using an e-mail protocol
3 7,406,466 Reputation based search
4 7,406,465 System and methods for ranking the relative value of terms in a multi-term search query using deletion prediction
5 7,406,458 Generating descriptions of matching resources based on the kind, quality, and relevance of available sources of information about the matching resources