Garageband resources

Getting started, simple tutorial- http://homerecording.about.com/od/garagebandtutorials/ss/getting_started.htm

Official Apple video tutorials- http://www.apple.com/ilife/tutorials/#garageband

Explanation of audio filters- http://www.macjams.com/article.php?story=20040329063101758

Basics of mixing- http://www.oreillynet.com/xml/blog/2005/11/a_beginners_guide_to_mixing_in.html