Podcasts that are available on websites via RSS feeds or in a resource such iTunes.
Nature: Produces a rich array of podcasts that highlight stories covered in their journals. All podcasts are archived on the site back to the first episode in October 2005.
Science: Produces 2 podcasts/month that contain excellent coverage of articles published in the journal, but with an interesting down-to-earth tone appropriate for any audience.
Scientific American: Sciam.com has two podcast series: 60-Second Science and Science Talk. 60-Second Science is posted every weekday and contains one-minute reports that explore an interesting scientific topic. Science Talk, on the other hand, is posted weekly and covers a variety of scientific topics in each 20-minute show.
New Scientist: Short, 12-minute podcasts that include topical news stories, informative interviews, & fun competitions.
Digg Podcasts: Science and Medicine: Great for news & for finding out what the hottest sites on the web are. Includes podcasts on science & medicine.
Science Friday: Excellent weekly coverage of the top stories in science and technology.