What's cool is that other people are starting to do the radio digest thing much like Steven Garrity's Acts of Volition Radio (of which there is now session 8 online). There's now Mathcaddy Radio Sessions and LugRadio. Very cool to see it spreading! Steven's also made up a helpful FAQ about his Acts of Volition Radio, it has a lot of helpful information for anyone looking to start their own. That guy is just plain helpful.