HomeFacebook CEO Mark Zuckerberg stands on stage prior to his keynote address at Facebook’s f8 developers conference in San Francisco
Facebook CEO Mark Zuckerberg stands on stage prior to his keynote address at Facebook’s f8 developers conference in San Francisco
Facebook CEO Mark Zuckerberg stands on stage prior to his keynote address at Facebook's f8 developers conference in San Francisco, California April 30, 2014. REUTERS/Robert Galbraith