Probably my favorite Jack Kerouac-obsessed website is DHARMA beat. If you haven't checked it out before, you'll definitely want to put it on your "to-do list."
For instance, here's a great page that pulls together all sorts of information on The Movie.
I apologize in advance to those of you who spend the next two hours addicted to surfing DHARMA beat when you had planned to do something else with that time. You were forewarned.