I'd like to reflect on this article by Wes Fryer. The links he gives are great. I personally would not have guessed how inexpensive podcasting is to set up in the classroom. Basically just the expense of a microphone to add to your computer set-up. He gives links to free software out there.
Wes Fryer mentions what a motivator podcasting can be for children to write, since they can become podcasting storytellers, and the thrill to present their own stories in that format will inspire them to compose.
I agree with this and also believe that it would be an excellent tool for their reading skills too. It may help students to learn to subvocalize while they read silently. To hear their own voice in their head as they read is an important step for reading fluency and comprehension. I think it is great that they could hear themselves reading after practising reading a story or passage fluently, to hear it in a performeed podcast should not only promote their print processing skills, but also their silent reading. I would think podcasts would be an excellent tool for any reading teacher. Often, you need your students to repeat a passage orally until it is fluent, what a wonderful motivator for that!