Also see Letter from Jimmy and Orit: What we have learned so far | WikiTribune
"Signs that the original approach was failing emerged in May when Mr Wales admitted that the site “didn’t get much work done”. He compared it to Nupedia, a Wikipedia predecessor he founded in 1999 but which closed in 2003, and which is seen to have failed because its rigorous quality standards discouraged public involvement.Wikipedia chief’s news website axes all its journalists | The Times
“I listened to advice that we had to be very controlled. We had to have a complex review process. We basically ended up building Nupedia again. Doh! It was beautiful and what we published was of high quality, but we didn’t really have genuine community control, and we didn’t get very much work done,” he wrote."