User-generated Encyclopedias Supervised by Experts

An interesting concept employed by Citizendium for instance, is that the crowds generate the content, but the “experts” inspect it for accuracy. Which brings more credibility and a more vast array of information. Since the “experts” will mostly “correct” minor errors, there is ore time to be dedicated to more content generation. 

The “crowdsourcing” element combined with the expert review side of it creates an interesting approach to the credibility issue in realm of user-generated content (especially that of encyclopedia-like environments)..

Any chance there could be something like Citizendium in educational environment that takes this approach? An environment to which users would add/edit/review content based on their “status” within the community? Multi-media content such as embedded videos, slideshows, images, flash objects would also enrich that environment… The media as an aid to learning, not as a means purely…