Google’s Marissa Mayer has been tapped to be the new CEO of Yahoo, The New York Times reported Monday. Mayer, 37, was one of the rising stars at Google and is one of the most prominent faces in Silicon Valley. It's a big week for Mayer: she announed Monday night that she is pregnant with her first child, a boy, due in October. At Google, she had been responsible for the company's famous white homepage and the design of Gmail, Google News, and Google Images. Yahoo, on the other hand, has had a troubled history with its CEOs, with Scott Thompson resigning in May after just four months on the job and after allegations that he lied about his academic qualifications. Yahoo’s board has also undergone significant restructuring in the past year.