Google has launched its 'other' wiki tool, called Knol. This will an interesting experiment to see whether the introduction of advertising cash and author accountability injects some formality into the wiki process and what impact this is going to have on the quality of the information.
TechCrunch is predicting a lot of attempts to monetize and a kind of land-grab approach, presumably people will rehash wikipedia's content to do this. It seems an odd idea but this is definitley a potential tool for peer review of ideas that sits outside of the published journal method...