Sure, you can debate the benefits and costs of ethanol vs. biodiesel, but here's something you can't really debate. In America, biodiesel gets a lot of support from home brewers and Willie Nelson while ethanol gets huge corporate support from groups like ADM and Citigroup (In other countries, Brazil for example, ADM is getting into biodiesel). In fact, ADM executives will give presentations at Citigroup's "Ethanol on the Cob" biofuels conference. The 's' in biofuels implies biodiesel might be discussed, but it's clear ethanol is the true star. The conference takes place on Tuesday afternoon and you can watch the presentations online on ADM's website. Source - http://www.autobloggreen.com