The document discusses Facebook and brands. It notes Facebook's incredible growth from 2004-2010, reaching over 500 million users and becoming the 3rd largest "country" in the world. It also discusses how Facebook challenges brands' traditional places and organizations. The document analyzes Facebook users' demographics, behaviors, and engagement with brands on Facebook. It finds that Facebook users highly engage with brands and advocacy/purchase intent increases after following brands on Facebook. However, some users do unsubscribe from brands, so maintaining engagement is important.