AZ Biodiesel, Gilbert, AZ    http://www.azbiodiesel.com/index.htm

Build your own

Biodiesel Processor           http://www.utahbiodieselsupply.com/index.php

                                               http://www.ezbiodiesel.com/DIY%20kits.htm

Willie Nelson's Biodiesel    http://www.biowillieusa.com/

Biodiesel National Board   http://www.biodiesel.org/

Diesel conversion kit          http://www.goldenfuelsystems.com/

French Fry Grease Diesel Conversion         http://greasecar.com/

How a Diesel Engine Works       http://auto.howstuffworks.com/diesel.htm

New LOW sulfur diesel fuel

                                        http://www.fueleconomy.gov/feg/lowsulfurdiesel.shtml

Soypower diesel fuel                http://www.soypower.net/