podcast n. a digital recording of a radio broadcast or similar programme, made available on the Internet for downloading to a personal audio player.OED

Why Podcasting?

Podcasting has been around for a few years and is slowly becoming more mainstream, Podcast creation events can be run over a number of sessions beginning with an introduction to and learning how to do it. The software to create it is freely available online and is (fairly) easy to use.

How to Podcast

Audacity free audio recorder & editor