Our study is based on a survey instrument, but is complemented by analysis of data mined from the network before and after the survey was administered. We show that there are significant demographic differences between FB member and non-members; that although FB members express, in general, significant concern about their privacy, they are not particularly concerned for their privacy on FB; that a minority yet significant share of the FB population at the Campus we surveyed is unaware of the actual exposure and visibility of the information they publish on FB; and we document that priming about FB’s information practices can alter some of its members’ behavior.
The rest of the paper is organized as follows. In Section 2 we discuss the evolution of online social networks and FB in particular. In Section 3 we highlight the methods of our analysis. In Section 4 we present our results. In Section 5 we compare survey results to network data.