“Computer networks are social networks. Social affordances of computer supported social networks–broader bandwidth, wireless portability, globalized connectivity, personalization–are fostering the movement from door-to-door and place-to-place communities to person-to-person and role-to-role communities. People connect in social networks rather than in communal groups. In-person and computer-mediated communication are integrated in communities characterized by personalized networking.” (Barry Wellman 2001)