local biodiesel around Durham, North Carolina
See our separate page on where to buy retail biodiesel.
learn more about biodiesel
How Stuff Works article on biodiesel, including links to explanations of how car engines and specifically diesel engines work. Clear and well presented, broken down into several illustrated pages.
Wikipedia article on biodiesel - talks about the history of diesel and biodiesel, issues with the use of biodiesel (including gelling at low temperatures), an overview of environmental benefits and production methods, and an overview of biodiesel's availability internationally.