A couple of weeks ago, I wondered aloud about a formalized community for some open source journalism. Coincidentally, this was a topic at BloggerCon (MP3), skillfully facilitated by Jay Rosen.
I enjoyed to the session. There were plenty of good ideas and some compelling examples, but it really raised more questions that provided answers. I also would have liked to hear from a few contrarians (a problem we also have with Northern Voice). Here are Jay’s notes, as well as Doc Searl’s excellent outline of how things played out.
On a related note, Mark Evans links to two mainstream media takes on the subject: Shane Richmond at The Telegraph and Jack Shafer on Slate.
DarrenBarefoot.com 
I did a big long only somewhat insane post on this topic myself — take a look: http://www.peterdarling.com/leftfield/?p=15
The bottom line seems to be that mainstream journalism seems to be being generated by a very small, self-referential group of people, and that collaboration would vastly improve its content, and its credibility.