Eric was a senior fellow for Media Matters. His sharp wit and biting insight shone through in his fierce writing – most recently on the site and newsletter he launched, Press Run, and prior to that at Media Matters, in outlets including Rolling Stone, Salon, and Billboard, in his books Lapdogs: How The Press Rolled Over For Bush and Bloggers on the Bus: How The Internet Changed Politics and the Press, and of course in his prolific – and frequently prescient – tweets.