.NET Podcasts
The latest trend is Podcasting. Podcasting = the use of RSS to distribute audio files in a "subscription" model, thus letting the user collect and consumer the feeds at their leisure.
I hate the fact that this is named after the ipod (obviously). I will save the commentary on the number of great audio players out on the market for a different blog.
For now, check out how the DotNetRocks crew are using the podcasts.