I have encouraged my students to post audio files too, although not to the extent that Steve K. has, nor have I used podcasts in instruction. His essay is well-done, particularly since he offers readers (and fellow educators) his rationale for doing so and a how-to guide for online writing instruction.
The structure of the article could have been more user-friendly and concise; it took time to navigate through the tabs to locate the desired information.
Time spent reviewing site:
15 mins. reading and reviewing this (I knew what I was looking for).