Primary links
The Smithsonian offers podcasts on a variety of topics. This collection would be a wonderful resource for research on, including but not limited to, art, history, music, and science. The Global Sound Podcasts include music from all around the world. Morever, it featuresTools for Teaching, resources and lesson plans for grades K-12.
What a great educational
What a great educational resource (especially for K-12)! I could definitely see these podcasts being used to supplement relevant units being taught in a class.