Yillara Gore Facebook Kullanici Sayilari

• February 2004: zero users
• December 2004: 1 million users
• December 2005: 5.5 million users
• December 2006: 12 million users
• April 2007: 20 million
• October 2007: 50 million
• August 2008: 100 million users
• January 2009: 150 million users
• April 2009: 200 million users
• July 2009: 250 million users
• September 2009: 300 million users
• December 2009: 350 million users
• February 2010: 400 million users
• July 2010: 500 million users
• December 2010: 600 million users
• July 2011: 750 million users
• September 2011: 800 million users
• April 2012: 900 million users
• October 2012: 1 billion users

Facebook's user numbers still growing, but how high can it go? | The Social Analyst - CNET News