Like with blogs I couldn't believe how many podcasts there were out there, people create them about everything. I found the Podcast Pickle the easiest site to navigate as it had good lists of categories and but I thought there should have been better summaries of what the Podcast was about, the site Podnova was very good in this respect. I found some good movie review ones, such as Kendall Weaver's Top five. Nice and succinct movie reviews.
One of My favorite authors Diana Gabaldon regularly realises podcasts of news and other information on her website that I listen to. I think they are a great tool as they are capible of so much variety, as you can listen to them anywhere. They are great for lazy people and have that added leval of personality which is nice.