1) General information and examples of the craft of radio storytelling: http://howsound.org/
2) SAMPLE #1 Recommended example of high-quality, moderately produced podcast: http://howsound.org/2011/12/99-invisible/ The second half of this 20-min about pyramids story (final ten min) is devoted to a discussion of the art of podcast production. PRX Producer Roman Mars also discusses why pod-casting has grown so incredibly popular over the last decade.
3) SAMPLE #2 Excellent example of environmental sustainability-oriented talk radio program, produced through a conversation-and-debate-based format you could pursue: http://onpoint.wbur.org/2014/09/15/grand-canyon-development Notice how host Tom Ashbrook weaves together multiple opposing viewpoints while still building an argument regarding the more fundamental question: Who Owns Nature?
4) A bit of creative encouragement and insight from This American Life's Ira Glass: https://www.youtube.com/watch?v=PbC4gqZGPSY
5) Podcasts produced by independent scholars. These shows successfully engage a rigorous academic tone that is also accessible to interested listeners:
- Social Science Bites
- Philosophy Bites
Hosts Nigel Warburton and David Edmonds are well worth emulating, and may even be available for interview as part of your final project.
Other recommended Podcasts (highly produced and technically challenging, but very inspiring as well!)
- This American Life
- BackStory with the American History Guys