FILE - In this Nov. 16, 2010 file photo, Facebook CEO Mark Zuckerberg smiles as he speaks at the Web 2.0 Summit in San Francisco. Zuckerberg has been named Time magazine's "Person of the Year" for 2010. (AP Photo/Paul Sakuma, File)

Photo by: Paul Sakuma

FILE - In this Nov. 16, 2010 file photo, Facebook CEO Mark Zuckerberg smiles as he speaks at the Web 2.0 Summit in San Francisco. Zuckerberg has been named Time magazine's "Person of the Year" for 2010. (AP Photo/Paul Sakuma, File)