The purpose of this chapter is to document the extent of Facebook use and cyberbullying among adolescents. It is based on a study theoretically grounded in third-person perception (TPP), the belief that media messages affect other people more than oneself. As Facebook establishes itself as the dominant social network, users expose themselves to a level of bullying not possible in the analog world. The study found that 84% of adolescents (middle school through college undergraduates) use Facebook, and that most users log on daily. While 30% of the sample reported being cyberbullied, only 12.5% quit using the site and only 18% told a parent or school official. Despite heavy use and exposure, adolescents exhibit TPP, believing others are more likely to be negatively affected by Facebook use. A range of self-protective behaviors from precautionary (deleting or blocking abusive users) to reactionary (quitting Facebook) were related to decreased degrees of TPP. Implications for prevention education are discussed.