As previously mentioned in my post about the LSE podcasts, I listen to a lot of online interviews, lectures and radio programs. While often I'll flit from podcaster to podcaster as I hear of shows that sound interesting, there are a few that have continued to prove worthwhile time and again.

Three of those are Tank Riot, a source of geeky goodness, with sharp, funny discussions of topical ideas coming from "tropical Madison Wisconsin"; Smart City Radio, Carol Coletta's brilliant program on the changing nature of cities; and the Long Now Seminars, simply the best discussions of long-term thinking to be found anywhere.