If they don't start using something other than corn to make ethanol, you can expect all of ther crops to increase in price as farmers replace them with corn. Rye, Wheat, Peanuts, SoyBeans even Corn itself, and all related products produced from these crops will increase in price, dramatically. One other problem which will eventually occur is that you can't keep growing corn on the same land without rotating in other crops. Eventually, the land will not produce as well. Whatever happened with that Switch Grass which GWBush was talking about planting to produce ethanol? Guess he passed that hurdle and left it in the dust.