13154947 - bucharest, romania - march 28, 2012: facebook logo is displayed on a mobile phone screen. facebook is a social networking service launched in february 2004, having more than 845 million active users.
Description: 13154947 - bucharest, romania - march 28, 2012: facebook logo is displayed on a mobile phone screen. facebook is a social networking service launched in february 2004, having more than 845 million active users.