UPDATE 01/09/06 See here for UCLA study. "I suspected that many media outlets would tilt to the left because surveys have shown that reporters tend to vote more Democrat than Republican," said Tim Groseclose, a UCLA political scientist and the study's lead author. "But I was surprised at just how pronounced the distinctions are."
UPDATE 01/12/06 On Media Standards (remembering CBS/Dan Rather):
Ross to Mapes: "Do you still think that story was true?"
Ex-CBS producer Mary Mapes: "The story? Absolutely."
Ross: "This seems remarkable to me that you would sit here now and say you still find that story to be up to your standards."
Mapes: "I’m perfectly willing to believe those documents are forgeries if there’s proof that I haven’t seen."
Ross: "But isn’t it the other way around? Don’t you have to prove they’re authentic?"
Mapes: "Well, I think that’s what critics of the story would say. I know more now than I did then and I think, I think they have not been proved to be false, yet."
Ross: "Have they proved to be authentic though? Isn’t that really what journalists do?"
Mapes: "No, I don’t think that’s the standard."
— ABC’s Good Morning America, November 9.