In this May 4, 2007 file photo of Times Square news ticker flashes a headline about Microsoft above a billboard for Yahoo in New York. Microsoft Corp. is once again trying to team up with Yahoo Inc. to challenge Internet search and advertising leader Google Inc., although at this point the renewed talks haven`t escalated to another attempt to take over Yahoo. The Redmond, Wash.-based software maker disclosed the revived discussions Sunday May 18, 2008 without providing any specifics about the nature of the deal being explored except to say it involved bolstering the companies` position in the online search and advertising markets. (AP Photo/Mark Lennihan, File)

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