This chapter has two main aims. First, to investigate the Facebook practices used in the U.S. banking sector with the aim of enhancing customer engagement; second, to perform a comparative analysis of the use of Facebook in this respect, among different U.S. banks. In this comparative analysis, we apply the Federal Reserve charter classification (Nationally chartered member bank, State-chartered member bank and State-chartered nonmember bank). The findings of this study contribute significantly to our understanding of the influence of social media in enhancing customer engagement. Banks, and their community managers in particular, can make use of the conclusions drawn in this study to develop future strategies to foster citizen engagement via Facebook.