Midnight Character Sheet- http://darknessfalls.leaderdesslok.com/aids_charsheets.htm
Midnight SRD- http://darknessfalls.leaderdesslok.com/index.htm
D20 SRD- http://www.d20srd.org/
A great fan site- http://www.againsttheshadow.org/index.php Go to the forums, and join. Stay out of the DM's section. My AtS handle is Doomed Hero. Once you join, send me a private message and I'll put your handle up here so everyone knows. Temporary site home. http://www.ats.unifans.org/index.php
The Big Model- This is the Why and the How of gaming. Read it. http://www.indie-rpgs.com/forum/index.php?topic=8655.0
(Anders says: Sweet Moses, Jasper. This does not strike me as entry-level document. I plugged through a fair bit of it, looking up terms, but I eventually bogged down in uncertainty as to whether I was learning about roleplaying or just learning about how people discuss it on The Forge. ...Oh, hey. Convenient glossary link below. That woulda been handy.)
The Big Model Glossary- Just in case you're interested or confused. http://indie-rpgs.com/_articles/glossary.html