I have only listened to a few podcasts before reading Dr. Levinson’s chapter, but they seemed more appealing after the reading. The first podcast I ever listened to was actually created by a co-worker. The podcast contained his NFL playoff predictions, and was pretty entertaining. The format of his podcast was similar to a radio show, but I was able to tune in whenever I wanted and even pause it. Another great feature about podcasts is the ability to transfer them to your ipod, and listen to them on the go.
I can’t imagine podcasts entirely replacing radio, because people like to listen to live shows; but I believe they will increase in popularity. Similar to the way some people became famous after being discovered on YouTube, I think certain people who frequently “podcast” could get discovered and get offered positions at radio stations.
According to the “podcast” Wikipedia entry, the first community podcast was hosted at Fordham University in 2005.