In Portland, Ore., KPOJ-AM had less than 1 percent of the market share before it switched from oldies to progressive talk on March 31. By summer, that had jumped to 4 percent, according to Arbitron ratings. In Ann Arbor, Mich., WLBY-AM jumped from 0.7 percent of the market to 2.2 percent after liberal programming replaced oldies in August. Hobbs said the story is similar all over the country. [emphasis mine]

Are they seriously basing their decision on a comparison between AM oldies and liberal talk? And because liberal talk radio is more popular than oldies, they assume it is actually popular? This is like comparing the popularity of root canals and castration, and concluding that people love root canals.

Who listens to music on AM?

Amazing what free market capitalism leads to, isn't it?

I find it interesting that instead of referring to it as liberal or left-wing, it is graced with the title "progressive", as if anything else is against progress or new ideas.