[chittychittybangbang]

Here are two introductory articles that should teach the basics, clear up some myths, and link to further reading and sources.

Intro to biodiesel

http://www.myturbodiesel.com/1000q/biodiesel/biodiesel.htm

Intro to making biodiesel yourself

http://www.myturbodiesel.com/1000q/biodiesel/intromakingbiodiesel.htm