I think Esquire magazine writer A.J. Jacobs is planning to write a Freakonomics-like book in sociology. After outsourcing his personal life (and liking it!), he ran another 'experiment': he "decided to craft an article about Wikipedia, complete with a series of intentional mistakes and typos, and post it on the [Wikipedia] site". From the C-Net story:
The hope was that the community itself would be able to fix the errors and create a clean version that would be ready for publication in Esquire's December issue. The original version was preserved for posterity.
Read the rest of the story here.
Link to the C-Net story via Chugs.