Social networking sites are prevalent among young adults. College students in particular are utilizing these sites to keep in contact with friends and to make new friends. However, with the positives of social networking, there are also negatives. Students can provide too much personal information online, engage in inappropriate conversations, scrutinize other students, ridicule peers, and so forth. Because of the impersonal environment that technology creates, an individual’s normal behavior can change which leads to a change in his/her basic ethical structure. The purpose of this chapter is to provide a discussion of the changing ethical structure of students, as well as an examination of the ways to teach ethics, given those changes. The chapter also includes a discussion of four classical ethical theories that should be considered when discussing or teaching social networking. Future research directions are also given.