Regarding your question on ethanol, I happen to own and do a little work with a company that is in the ethanol business. If I can't answer your questions, I will certainly do my best to get you the accurate answer.
The company I own a nice position in is actually not reliant on corn as the feedstock which is what makes it not tied to the underlying commodity price of corn, a big issue for your typical ethanol player.
Fire away with your questions and I'll do my best!