It’s a little overdue, but I hereby officially want to post my MA thesis for everyone to read (and/or use under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 license). This thesis was written in a total period of about five months under the supervision of Richard Rogers, with Geert Lovink as the second reader. This thesis deals with the relation between social networking sites (SNSs) and its underlying software, as well as the influence this might have on the user.