I think the stickied videos at the top of this sub-forum are wonderfully helpful. SnoWolf's videos probably helped me the most. I find that it pays greatly to be as technical as possible and analyze your form very skeptically. The depth of snowboarding is addicting and highly entertaining. I just keep wanting to learn more and more.
Also, there are a few videos from SnowboardingAddicts.com that are helpful. I saw one on YouTube recently that was really helpful in describing how to set up the approach for 1's and 3's.
I hit my first jumps last week, and the rush you get is amazing!