Although Instructables has many great articles on carving pumpkins, it's sometimes hard to determine from the snapshot who is the best or, for that matter, even knows what they're talking about.  Well, if you're willing to shell out $18, you can get 3 shows from Terri Hardin (Ghostbusters, Disney, Universal Studios) at Fugu.com on how to get some amazing results from your giant gourd. 

ExtremePumpkins.com also has lots of ideas, tips and tricks.  I first found that site about a year ago when I came across the "Kerosene Soaked Toilet Paper" video.

On a related note, MyScienceProject.org performed a fun little experiment on how to keep your jack-o'-lantern looking scary as long as possible.  I won't spoil the surprise ending, but I will tell you that smearing white glue all over your pumpkin isn't a good idea for a preservative.