FILE- In this Thursday, March 20, photo, Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif. A research firm expects Facebook’s mobile ad revenue to soar this year,

... more 

FILE- In this Thursday, March 20, photo, Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif. A research firm expects Facebook’s mobile ad revenue to soar this year, hitting nearly $1 billion a year after the company started to splice ads into its users’ mobile phones and tablets. (AP Photo/Jeff Chiu) less 

1 / 20
Associated Press
Thu, Apr 4, 2013 8:06 PM EDT