This one is just so easy that it is often overlooked. Just as you would (at least in the old days) list your website with several popular directories, you need to do the same with your podcast.

Here are some of the more popular podcast directories:

• EveryPodcast.com - Podcasters can add their information to the directory simply by submitting their feed URL.
• Feed Shark - Automatically submits your podcast to multiple directories.
• LearnOutLoud.com - This is a directory of educational podcasts, which may or may not apply to your particular podcast.
• Podcast Alley - This is currently the king of the podcast directories. Make sure to list your show here!

For a complete list of podcaster resources, make sure to visit castwiki.