In this paper we combine survey analysis and data mining to study one such network, catered to college and high school communities: the Facebook (FB). We survey a representative sample of FB members at a US campus. We study their privacy concerns, their usage of FB, their attitudes towards it as well as their awareness of the nature of its community and the visibility of their own profiles. In particular, we look for
underlying demographic or behavioral differences between the communities of the network’s members and non-members; we analyze the impact of privacy concerns on members’ behavior; we compare members’ stated attitudes with actual behavior; and we document the change in behavior subsequent information exposure:
who uses the Facebook? Why? Are there significant differences between users and non-users? Why do people reveal more or less personal information? How well do they know the workings of the network?