During my continued search for natural building podcasts, I used the new podcast search by Yahoo! I found a podcast called Beyond Organic, by Jerry Kay, the publisher of the Environmental News Network.

The Permaculture show was of great interest to me.
It features:
Penny Livingston Stark — Founder, Regenerative Design Institute,
Dave Jacke — Author
Edible Forest Gardens and Patty Karlin — Owner, Bodega Goat Cheese