Floss Weekly shares a lengthy podcast concerning openstreetmap. It sheds some light on many aspects of the project. If you are an OSM newbie and want to learn more about the project (e.g. »What is the difference between Mapnik and Osmarender?«), this podcast is the right thing for you.
Steve Coast, the founder (and benevolent dictator :) of openstreetmap.org, chairman of the openstreetmap-foundation and co-founder of cloudmade, shares a lot of insights. At the beginning of the subsequent podcast, there’s still some information about routing with OSM data.
Thanks to HMK who pointed me to those podcasts.