I’ve been trying out various podcasts on itunes. The growth in the number of new podcasts has been amazing. I’ll try to add a few reviews here from time to time. A good starting point is APM’s (American Public Media’s) Future Tense podcast. Short (under five minutes) summaries of a key technology or future related news item. I found the four or five that I listened to very informative and a good "mini" briefing on key items. For me, its perfect for short trips to the store, brief shores, etc. I subscribed.