For our podcast exercise I looked at the ABC book review podcasts. These podcasts cover many different types of books and also talk about libraries. For example they discuss audio books, youth fiction and it's trends and the future of libraries. I've created a link to them so you can decide which one you might like to listen to
http://www.twinsburglibrary.org/podcasts/bethandcari.xml
They can be really funny and are worth listening to. I've also added another podcast on our class wiki