Where is the Wikitorial? After a rash of vandelism, the LA Times pulled down their experimental wiki after 3 days. While they have been the brunt of many rants on various blogs, you have to give them credit for trying something new and working out the details.
Lesson learned: collaborative websites need to have community. This was a series of individuals casting opinions without the context of community. The Wikipedia, while much more popular than the Times wiki could have dreamt of being, works because there is a group of caring individuals who make up the whole of a community that look out for the common interest. The only way such endevours will work is the adoption of an agreed upon principle or purpose. Without that, you have anarchy.