WLS 890 chicago
Ron Paul has a radio ad playing a lot on WLS 890 in Chicago. This is the biggest talk radio station in the midwest and is quite conservative. It was kinda of sad today to hear a Ron Paul commercial during the Limbaugh's show. They played the Ron Paul commercial right after a segment where Rush played a parody song about Ron Paul ("Should I Stay or Should I Go") suggesting Ron Paul will drop out soon.
However, this commercial is playing here alot, so it might make a difference since the talk radio guys don't seem to have a solid candidate to back. Besides the Rush parody song, I haven't heard anyone talk about Paul for more than a sentence. Well, to be accurate, CoastToCoastAM does praise Paul. But that is mostly preaching to the choir and I'm sure it doesn't help with the "kook" factor.