Podcasting is an often overlooked corner of the media world [....] The iTunes store from Apple, where about 75 percent of the audience for podcasts looks for fresh material, contains about 150,000 regular shows featuring has-been and up-and-coming comics and sex talk, as well as mainstream fare like NPR and CNN broadcasts. Edison Research estimates that a quarter of all Americans over the age of 12 have listened to or watched at least one.
via Jon Kalish, Leo Laporte Builds Empire With ‘This Week in Tech’ – NYTimes.com.