Podcasts are a very new and exciting topic for me. I really enjoyed reading "Podcasting in Libraries" by Chris Kretz. It clarified a number of things for me; primarily the difference between an simple audio file and a podcast. I especially like Kretz's analogy of podcasts to newspaper delivery. I am always looking for concrete ways to explain the improvements technology can make in our lives, particularly when collaborating with teachers who sometimes need a little more time to warm up to a new idea.
I checked out a number of podcasts that Kretz mentioned with regards to teen library culture. I subscribed to a few via my Google Reader. Here are some links to make it easy for you, if you are interested.
Nancy Keene's Booktalks Quick and Simple - Grades K-12
Isinglass Booktalk Podcasts - Grades 7 & 8
Teen Podcasts @ the Cheshire Public Library
OCLS Teen Podcast