1. In iTunes you will see your podcasts in a list, each one with an expansion triangle to reveal the individual episodes within that podcast. If you Command-click on the triangle, every podcast in the list will expand to show episodes.

2. It's fairly obvious that you can delete single episodes from a podcast by simply selecting it and pressing delete. However, getting them back is a bit less straightforward. Option-Clicking the triangle next to the podcast title will bring up the full episode list, including any that you have removed in the past. Now you can click "Get" to download the episodes again.

3. If you prefer to hear your podcasts at a faster (or slower) rate you can adjust the playback speed. Select your podcast episode in iTunes and Right-click (Control-click) to bring up the context menu. Choose "Show in Finder" then open up the file in Quicktime (Control-click the file and choose "Open With"). In Quicktime, press Command-K to bring up the A/V Controls and move the playback speed slider at the bottom of the window to your preferred speed.

4. Many podcasts have excessively long descriptions (well, too long to fit in the description column of the iTunes window). To bring up a window that contains the episode description and other details, click the small "i" icon on the right side of the description column.

5. If you come across a podcast on the Internet but you can't find it in the iTunes Podcast Directory, you can still subscribe to it in iTunes. Choose "Subscribe to Podcast..." from the Advanced menu and enter the podcast feed URL.