In their book Beyond the Echo Chamber: Reshaping Politics Through Networked Progressive Media (New Press), activists and journalists Tracy Van Slyke and Jessica Clark take us on a celebratory journey through the relatively recent (over the past eight years) surge of independent, progressive media. The conclusion they reach is undeniable: by every measure, what we know as the progressive media and the netroots, "reaches far larger audiences — millions of people every day — and is decidedly more influential than ever before." But there’s still work to be done and challenges ahead.
Comments and excerpts here and here
Book website: http://www.beyondtheecho.net/