Social Networking Sites are virtual communities where users can create individual public profiles,
interact with real-life friends, and meet other people based on shared interests. SNSs are “web-based
services that allow individuals to: (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 of connections and those made by others within the system” [9]. The focus is placed
on established networks, rather than on networking, which implies the construction of new networks.
SNSs offer individuals the possibilities of networking and sharing media content, therefore embracing
the main Web 2.0 attributes [10], against the framework of their respective structural characteristics.