This research conceptualizes political engagement in Facebook and examines the political activity of Facebook users during the 2008 presidential primary (T1) and general election (T2). Using a resource model, we test whether factors helpful in understanding offline political participation also explain political participation in Facebook. We consider resources (socioeconomic status [SES]) and political interest and also test whether network size works to increase political activity. We find that individual political activity in Facebook is not as extensive as popular accounts suggest. Moreover, the predictors associated with the resource model and Putnam’s theory of social capital do not hold true in Facebook.