Marissa Mayer's First Day as Yahoo CEO

Tuesday, 17 Jul 2012 | 1:15 PM ET

Yahoo's new CEO Marissa Mayer starts today, reports CNBC's Jon Fortt. Kara Swisher, All Things Digital, discusses why this move is a smart move for Mayer. "For Yahoo, they get a big name, with a lot of computer science and technology skills," says Swisher.