My recent appearance on Vincent Zurzulo's The Comic Zone radio show is archived online.
Click http://www.worldtalkradio.com/archive.asp?aid=1579 It's in Segment 3, I believe.
Past radio interviews have aired on dozens of stations, including...
Appleton, Wis.: WHBY 1150 AM "The Good Neighbor Show"
Beaver Dam, Wis.: WBEV 1430 AM "The Ideas Exchange"
Cleveland, Ohio metro: WWOW 1360 AM "Free Radio"
Elkhart, Ind.: WTRC 1340 AM
Elyria, Ohio: WEOL 930 AM
Erie, Pa.:WJET 1400 AM
Fort Atkinson, Wis.: WFAW 940 AM "Morning Magazine"
Honolulu, Hawaii KHVH 830 AM "The Mike Buck Show"
Lexington, Ky.: WLAP 630 AM
Madison, Wis. Metro: WRCO 1450 AM
Montreal, Canada: CJAD 800 AM "Holder Overnight"
Available in MP3 format here (they're pretty big):
Newark, N.J.: WDVR 89.7 FM
Ottawa, Ontario: CFRA 580 AM
Pittsburgh, Pa. Metro: KDKA 1020 "The Late Day Show"
Portland, Ore. Metro: KPAM 860 AM "The Jimmy Hollister Show"
St.Louis, Mo. metro: KWRE 730 AM "AM Live Wire"
Tacoma, Wash.: KLAY 1180 AM "The Donna Seebo Show"
The Joe Mazza Show (syndicated)
Toledo, Ohio metro: WCWA 1230 AM "Clark-n-Company"
Booking agents should contact Bill Hahn at Krause Publications at (715) 445-2214.