Mark Zuckerberg announced today that Facebook has now reached 1 billion users. See other surprising numbers behind the social media titan's success.
Mark Zuckerberg announced in October 2012 that Facebook has now reached 1 billion users.
Seoul National University/Handout/Reuters
Lucy Richardson/ Reuters
iStock / gbh007
National Portrait Gallery, London
Sign up for Breaking News, Daily Headlines, Severe Weather Alerts & more!