Y'know, I think "Free Republic" would be a good model to do this. A scientific paper would be "published" as news stories are currently (in full, NOT ABSTRACTED), and "peer review" take place via the comments. You'd get a lot of chaff along with the heat, but I think it could work. Problem is how to run it so it pays for itself.
LOL...that's supposed to be "wheat", but there'd undoubtedly be a lot of heat as well.