There are many resources on the Internet for podcasting, but here is a succinct and useful start. The goal is to create audio files, put them on the Web, and allow subscribers to be notified of updates.
A good working definition of podcasting is:
the method of distributing
multimedia files, such as audio programs or music videos, over the
Internet for playback on mobile devices and personal computers. Podcasts are distributed using either the
RSS or
Atom syndication formats.
from Wikipedia (http://en.wikipedia.org/wiki/Podcasting Retrieved May 26th, 2006)
Here are some resources that can help you get started:
Audacity--the free software that can help you create podcasts.My
Audacity Tutorial on My Updates and New Material (Audio Editing Using AUDACITY Software)--an anchored project that will get you started with Audacity.
When using other people's work, copyright is a major consideration. If you are using other people's work, you should familiarize yourself with Podcasting Legal Guide by Creative Commons. It's comprehensive with a brief and useful section on Finding Podsafe Content.
If you are looking for a host who will supply the space and generate the rss feed,
Garageband is very good. Right now I'm looking into the restrictions and ability to use songs on Garageband for podcasting.
The songs on Garageband are on a sliding scale of copyright restrictions--from full copyright to use only in Garageband podcasts to creative commons. This
FAQ has the details.
If you are looking for a source for original music, you might also want to try the
CTC Music Mixer, an online multitrack music editor with a library of music tracks.
The complex part is the creativity work you do for your show. Here is an interesting podcast from NPR's Soundcheck that reviews the landscape of podcasting--It's a Pod World After All.