Wikipedia is still an anywhere anytime site, but according to this article in the New York Times not necessarily for everyone:
Basically,Wikipedia administrators sometimes put a four-day “waiting period” on the editing of certain entries to combat vandalism. More specifically, “It has a clear power structure that gives volunteer administrators the authority to exercise editorial control, delete unsuitable articles and protect those that are vulnerable to vandalism.”
Obviously, the question here is, where do you draw the line when it comes to control? How open should Wikipedia be? I was surprised to read that Wikipedia is maintained and edited (and controlled?) by a community of roughly 1,000 people. While these people work very hard to maintain the site according to its mission that anybody can contribute, the current administrative structure makes me wonder whose information is really posted on Wikipedia, and what kind of slant or bias it may have….