Quentin had a link to some thoughtful musing by Bill Thompson about the current Wikipedia controversies. His conclusion:
I use the Wikipedia a lot. It’s a good starting point for serious research, but I’d never accept something that I read there without checking. If the fuss over Siegenthaler, Stoltenberg and Curry means that other readers do the same then it will have been worthwhile. We shouldn’t dismiss the Wikipedia, but we shouldn’t venerate it either.