Podcasting.

A podcast is a series of digital-media files which are distributed over the Internet using syndication feeds for playback on portable media players and computers.

The term podcast, like broadcast, can refer either to the series of content itself or to the method by which it is syndicated; the latter is also called podcasting. The host or author of a podcast is often called a podcaster. Here's a selection of some interesting podcasts, listen to them and make yourself an opinion on those you like