Rhetoric and composition now has a history of teaching, research, and engagement with communities. We also have a number of terms for describing this work, each with its own history: community literacy and service learning are but the two most common. The historical roots that led to community literacy have also yielded shoots of growth in the areas of public rhetoric, cultural rhetoric, ethnography, research, and professional and technical communication. Central to all these areas is the fundamental understanding that writing matters; it can make a difference for peoples, organizations, and institutions. Depending on the purposes and exigencies for writing in these contexts, community-based writing can mobilize people, inform policy, seed new initiatives, draw audiences to events and forums, allow for greater participation in decision making, and make decision making transparent. For the last decade and half, scholars in rhetoric and composition have worked hard to define our roles in facilitating writing in the public interest, though we have not often done so in ways that create a synergy around shared research interests or theoretical projects.