I wanted to plug a new podcast series called "Very Bad Wizards" I'm doing with David Pizarro (psychologist at Cornell) on issues in moral psychology. The first two podcasts are on free will and moral responsibility. Pizarro, for those who don't know him, is an entertaining guy and he's done some cool studies on this topic.
You can access both on the series website (verybadwizards.com) and also subscribe on itunes. The next two podcasts aren't out yet but will be on moral and cultural relativism and revenge. Dave composed the intro music himself and my daughter gives a brilliant and subtle performance in the disclaimer that leads off each episode. Hope you enjoy them!