A Stupid Question

From the Chicago Sun-Times, discussing YearlyKos:

Why do liberals thrive in the blogosphere but not on talk radio, where the right wing reigns? "It takes a lot of money" to start a broadcast, said DailyKos founder Markos Moulitsas Zuniga. "People like me were able to start the DailyKos with $50."

Here's another answer: The Right is composed of barely-literate authoritarians who will follow any stern figure, and are best communicated to orally, whereas Leftists are literate, capable of dissent, and not inclined to accept conventional wisdom broadcast to them. (Generally.)