A New York Magazine columnist has written an extensive article about the cable news battle over the last half-dozen years, with details ranging from CNN attempting to hire Keith Olbermann away from MSNBC, to MSNBC's failed bid to purchase The Huffington Post. Oh, and there's some Fox News dirt in there, too.
http://nymag.com/news/media/68717/
http://nymag.com/news/media/68717/