FILE- In this Monday, Dec. 7, 2009, file photo, Marissa Mayer, VP of Search Products and User Experience for Google, speaks in Mountain View, Calif. Yahoo announced Monday, July 16, 2012, it is hiring Mayer to be its next CEO, the fifth in five years as the company struggles to rebound from years of financial malaise and internal turmoil. Mayer, who starts at Yahoo Inc. on Tuesday, July 17, 2012, was one of Google's earliest employees and was most recently responsible for its mapping, local and location services. (AP Photo/Marcio Jose Sanchez, File)