According to wikipedia, daily newspapers endorsed Obama over McCain in '08 by a ratio of 296 to 180 in 2008 total circulations 31m versus 12m, respectively, and weeklies by a 111 to 32 ratio. (The dailies endorsing McCain were mostly small papers.) The spread was much wider among magazines and college papers. In '04 Kerry got 208 endorsements to Bush's 189, with total circulations of 21m versus 14m, respectively.
Most polls of journalists in the past 2 decades show two to three times as many claiming to lean left than leaning right. The journalists have consistently been about twice as liberal as the public.