Podcasting with Wordpress
WordPress Podcast Plugin
Full featured and automatic feed generation (RSS2, iTunes and ATOM and BitTorrent RSS). Preview of what your Podcast will look like on iTunes. Support for premium content. Automatic Media player for MP3, OGG, MP4, MOV, FLV, SWF, ASF, WMV, AVI, and YouTube.
WordPress Podcasting
How to use WordPress for podcasting. After uploading a podcast, typically in the MP3 or MP4 format, upload your podcast and link using an absolute uri. More details available.
Podpress Plugin
Creates feeds, automatically and full featured. Able to preview your podcast as it would appear in ITunes. Download stats available. Automatic media player for MP3, MP4, MOV, FLV, ASF, WMV, AVI and more. Preview image for videos. Support for multiple formats. Control the look and location of your podcast within your post.
WP-iPodCatter
Allows Wordpress podcasters to create a valid feed for ITunes' podcast directories. Available under the GNU Public License.
Audio Player Wordpress plugin
Plugin allows you to insert MP3 audio files into your posts and pages. The code will insert a flash player. Audio Player also allows you to play a sequence of audio files. Addtionally, you can pre or post append audio clips to all of your players. RSS feed can show a download link, nothing or custom information.
Blubrry PowerPress Podcasting Plugin for Wordpress
Wordpress podcasting plugin that support iTunes, offers Update iTunes Listing feature, and web audio/video media players.
Audacity
Audacity: Audio Editor and Recorder
Download the open source software for recording and editing sounds. Available for Windows, OS X, GNU/Linux and other operating systems.
Create Podcasts Using Your PC
Detailed, step by step instructions on how to record and post your own podcasts.