As another newbie I find the following things have helped me learn the most: (In order of importance)
1) PMing Rick and others 20 times a week with incessant questions. (Calling works pretty good as well, but then you have to take notes.)
2) Searching the forums here and at ekartingnews.
3) I actually just picked up a pretty decent book for beginners at the library called “The Karting Manual” it is quite recently published out of the UK and had some great notes on driving posture and style.
Driving my kart has still been the best learning tool, but looking outside it might be a while till the next seesion!
Hope to meet you at the track soon!
-Nick