1.28 billion monthly Facebook users monthly Facebook users 1.28 billion monthly Facebook users Facebook: 10 years of social networking, in numbers heutzutage sind es über 330 Facebook’s user numbers 1.23 billion active users at the end of 2013 average of 1.23 billion 1.23 billion monthly active users boasted of 1.23 billion active users Guardian Guardian 1.28 billion monthly Facebook users boasted of 1.23 billion active users monthly Facebook users "Facebook: 10 years of social networking, in numbers" 1.28 billion monthly Facebook users 1.23 billion active Facebook users The Guardian (2014) average of 1.23 billion