Does Media Activism have a future?

Media activism is in its infancy. It is fragmented and has dozens of different agendas. Policy mavericks are fighting ownership concentration in the courts. Independent journalists are speaking out on the internet and airwaves. Educators are helping the next generation by teaching media literacy in their classrooms.
What can pull together these currently disparate threads? What will it take build a media movement to parallel the other great movements of our time, like environmentalism, feminism and civil rights? Larger narratives like Media Democracy, Media Justice and Mental Environmentalism will surely play a part.
What else? Read the background article here and then weigh in on the future of the media movement.