Facebook, the social networking site founded by Mark Zuckerberg in 2004, was initially a Harvard-only site, as users were required to have Harvard.edu email addresses to join. The social network later extended its boundaries to include students from other universities, and then to everyone across the globe older than over the age of 13. It currently has just under 850 million users and, due to the sites’ expansion and on-going updates to the interface, issues such as consumer trust and privacy concerns have increasingly captured the attention of the media and academic researchers.