The Prometheus Radio Project is a non-profit advocacy and community organizing group with a mission to resist corporate media consolidation and radio homogenization in the United States. Founded in 1998 by a small group of radio activists in Philadelphia, Pennsylvania, Prometheus has participated in the community radio movement by providing technical training, helping marginalized communities gain access to affordable media outlets, and creating a network of low power community radio stations. A lot of Prometheus' efforts have over-time been focused on legal advocacy for low-power FM (LPFM) stations.

Low-power broadcasting is broadcasting by a broadcast station at a low transmitter power output to a smaller service area than "full power" stations within the same region. It is often distinguished from "micropower broadcasting" and broadcast translators. LPAM, LPFM and LPTV are in various levels of use across the world, varying widely based on the laws and their enforcement.