Computing Dictionary (2011), “Social networking site as any website designed to allow
multiple users to publish content of them. The information may be on any subject and may be for
consumption by friends, mates, employers, employees just to mention a few.”
Boyd and Ellison (2007) define “social networking sites as Web-based services that allow
individuals to having three common elements (1) construct a public or semi-public profile within
a bounded system, (2) articulate a list of other users with whom they share a connection, and (3)
view and traverse their list