The Challenge of Community Broadcasting is an article written as a result of the research project Communication Processes and Social Impact of Community Broadcasting in Aburra Valley. In the first part, the article states the notions of community broadcasting in both Colombia and the whole world; in the second part, it makes an analyzes of challenges community broadcasting has to face in order to improve participation in social sectors; at the end , there is a brief description of arenas, which can be used as springboard to improve sustainability of community broadcasting from what is social