This document discusses how social media like Facebook, Twitter, and blogs can be used to build communities. It explains that social media allows for participatory and democratic communication that is conversational and helps form connected communities around shared interests. Traditional media focuses on one-way communication from brands while social media puts the audience in control and facilitates two-way conversations and learning. The document also discusses how to cultivate a sense of community and the importance of shared goals, listening, transparency and knowing your audience when promoting community through social media.