If you want to become a better quiz bowl player, you have to practice. If we want to beat ISM (and we do) everyone has to practice and prepare. The following sites can help us achieve our goals.
How to Improve as a Player. Just what it says it is; an overview of how to improve as a player. Lots of great ideas here.
A Beginner's Guide to Writing Questions. Writing questions is a good way learn new information and embed it in your brain.
Ten Tips on Writing Questions. See above.
You Gotta Know. Basic information for the serious quiz bowler. Memorize this stuff. Also good for question writing ideas.
Online Games and Practice Tests: as much fun as you are allowed to have at school.