For decades, social movements have vied for attention from the mainstream mass media—newspapers, radio, and television. Today, many argue that social media power social movements, from the Egyptian revolution to Occupy Wall Street. Yet, as Sasha Costanza-Chock reports, community organizers know that social media enhance, rather than replace, face-to-face organizing. The revolution will be tweeted, but tweets alone do not the revolution make. In Out of the Shadows, Into the Streets! Costanza-Chock traces a much broader social movement media ecology.