In the Podcast, we mention Henry Mintzberg's "5 Ps of Strategy". There is more information available  at 
http://www.ifm.eng.cam.ac.uk/dstools/paradigm/5pstrat.html
We also mention David La Piana, the author of "Play to Win. The Nonprofit Guide to Competitive Strategy". You can find a Podcast where he presents some of his main ideas at
http://cdn.conversationsnetwork.org/SI.CLB-DavidLaPiana-2006.08.19.mp3