I have used wikipedia before and was aware that it can be edited by anyone and so have warned kids doing assignments not to take it as fact and to verify the information with something reliable like an encyclopedia or government website so I was suprised by the fact that a survey found it more accurate than the encyclopedia. After finding out more about how wikipedia works I see that for the amount of people who would post false information there would be so many more people to correct it!
I did not know that there were sites that can host a wiki for you or that they are so easy to set up. This would be great to use in a library or school environment, especially when you are able to have secure access as to who is allowed into the site and editors of the site are accountable for there posts.