Wikipedia is about to require that changes to articles need approval to appear publicly:
The two-month trial will test a system of “flagged revisions” on the English-language Wikipedia site. This would mean any changes made by a new or unknown user would have to be approved by one of the site’s editors before the changes were published. Whilst the changes are being mulled over, readers will be directed to earlier versions of the article. Wikimedia said the system was “essentially a buffer, to reduce the visibility and impact of vandalism on these articles”.
Interesting. If it works, it’ll be somewhat overlapping the territory of Citizendium, whose sole raison d’etre is that articles need expert approval. A while ago I predicted the demise of the Citizendium, which spurned a passionate response by the founder.