I have been familiar with iTunes and Podcasts for quite a while. I especially like podcasts because they are free :)
The recent discrovery I found was a series of videos produced about poetry that will go very well with my Poetry unit that I teach in the spring. They are poets speaking about their own poems before reciting them. I think it is a great exercise for students to emulate, and I may even make them do a similar thing with the poetry project that we do.
I also enrolled my own podcast onto iTunes so that people can subscribe to it. That means that any time I record and upload an update to my podbean.com site, it will automatically update the itunes of people who have subscribed to my "LitCast." I love that.