Marvel have set up their own wiki, http://www.marvel.com/
They're claiming copyright on all contributions, and asking stuff be referenced in issues or movies, it's vetted by editors, but I see a couple of problems. Is there a point where some of our material gets copied over, and if so what happens re the GFDL, and is there a possibility they could claim copyright infringement on Wikipedia's part for articles on their properties?
Steve block