The Center for Media Justiceis a dynamic communications strategy and media policy tank for grassroots organizations serving communities of color and America’s poor. http://centerformediajustice.org/
Check out their toolbox: http://centerformediajustice.org/toolbox/media-how-tos/
The Communicate Justice 101 toolkit is designed to provide the tips and tools necessary to conduct effective media campaigns for youth rights and racial justice.
SmartMeme builds movements and amplifies the impact of grassroots organizing with new strategy and training resources, values based communications, collaborations, and meme campaigning. http://www.smartmeme.org/section.php?id=86