In July 2007, the Consumer Federation of America released a report by Mark Cooper that went into great detail on the struggle occurring between ethanol and big oil. This isn't anything new but is well worth the read if you haven't already done so.
BIG OIL v. ETHANOL: THE CONSUMER STAKE IN EXPANDING THE PRODUCTION OF LIQUID FUELS (PDF)
Also in July 2007, Mark Cooper did an interview with OnPoint in which he further explained the above report. Again this isn't anything new either, but it is something that I just ran across today and has interesting additional information.
Consumer Federation's Mark Cooper discusses struggles between Big Oil, ethanol industry
In May 2007, Mark Cooper spoke before Congress about the concentration of the refining industry and the effect on consumers.
STATEMENT OF DR. MARK N. COOPER DIRECTOR OF RESEARCH CONSUMER FEDERATION OF AMERICA (PDF)