For Wikipedia founder Jimmy Wales, last week was a tough one. And he’s going to change the ground rules for the popular anyone-can-contribute encyclopedia because of it. First, in a Nov. 29 op-ed piece in USA Today, a former administrative assistant to Robert Kennedy lambasted the free online reference work for an article that suggested he may have been involved in the assassinations of both Robert F. Kennedy and John F. Kennedy. Then, on Dec. 1, a new flurry of attention came when former MTV VJ and podcasting pioneer Adam Curry was accused of anonymously editing out references to other people’s seminal podcasting work in an article about the hot new digital medium. To critics of Wikipedia–which, in a spin on the open-source model, lets anyone create and edit entries–the news was further proof that the service has no accountability and no place in the world of serious information gathering.