On my patch of the North Coast AM radio reception is bad. There is only one station with sufficient power to reach areas outside the city where it is located. Alas, this station is owned by Clear Channel Communications a right wing near monopoly which owns over 1,200 radio and some TV stations. They also produce many of the wingnut programs they force their stations to air.
WHAM, my local station provides 24/7 wingnuttery from Glenn Beck--the fellow who recently called victims of Hurricane Katrina 'scumbags', to a local talk show host who was fired once for calling the mayor, an African American, an orangutan, Limbaugh, Dr. Laura, Michael Savage, Sean Hannity.
The program director, when approached about opening up the chock-a-block right wing emphasis by hiring a progressive, or even moderate, personality, ridiculed the suggestion and gleefully expressed joy at being able to piss off a liberal.
Clear Channel also gets a lot of criticism from the FM listeners over their heavy-handed control of play lists. Clear Channel banned stations from playing music by the Dixie Chicks because of their public criticism of President Bush's invasion of Iraq.