Abstract: Teenagers are considered the most prolific users of social network sites (SNSs), where they spend a considerable amount of time. The growth of these online communities has skyrocketed with familiar examples being Facebook, Twitter and MySpace. Although research on young people’s use of SNSs is emerging, questions remain regarding exactly what motivates them to choose specific sites. This review outlines the theoretical framework and gratifications that researchers have used to understand teenagers’ interactions with SNSs. It brings together work that examines gratifications sought, such as diversion, personal identity, surveillance, and social capital. These gratifications point to a growing demand for more user-generated media and offers insights into potential areas for further research.