ExtremePumpkins.Com: Home of the aforementioned extreme pumpkin contest, this site offers a ton of stuff, much of it free and the rest cheap: Instructions for preparing and carving pumpkins (including a video), great photos of extreme pumpkins, some carving patterns which you can download for a few dollars, and instructions for using gasoline and other flammable materials to do pumpkin pyrotechnics. The emphasis here is on the funny, gross, and disturbing, rather than the cutesy designs you find on other pumpkin carving sites. The site is run by Tom Nardone, reigning king of extreme pumpkins and author of:
If you're as warped as I am, you'll love Nardone's work.
Since we're on the subject of books, I found one other book on extreme pumpkin carving:
For additional inspiration, search for extreme pumpkins on Flickr and YouTube.
I'm thinking of doing a cannibal pumpkin this year. Should be fun.