Facebook Tops 1B Monthly Active Users; Mark Zuckerberg Speaks With NBC’s Matt Lauer, ‘Bloomberg Businessweek’; New Agency Of Record Wieden & Kennedy Debuts ‘The Things That Connect Us’

Facebook officially reached 1 billion monthly active users Sept. 14 at 12:45 p.m. PT, Co-Founder and CEO Mark Zuckerberg revealed in a post on the social network’s Newsroom, as well as in an interview with NBC’s Matt Lauer, and in a cover story for Bloomberg Businessweek.