Wiki and Encyclopedia Britannica go head-to-head

Jimmy Wales' Wikipedia comes close to Britannica in terms of the accuracy of its science entries, a Nature investigation finds. Read more in Nature magazine at:
http://www.nature.com/nature/journal/v438/n7070/full/438900a.html
Read the response from Encyclopedia Britannica at: http://corporate.britannica.com/britannica_nature_response.pdf