Jim Heid, author of “The Macintosh iLife” has published more tips for iTunes 4.5 on his website. Here’s one of his tips on iMix, the ability to share your own playlist in iTunes.
More tips on iTunes 4.5
”Linking to an iMix. Want to email an iMix link to a friend or publish it on your Web site? Control-click on the icon for your iMix, then choose Copy iTunes Music Store URL from the shortcut menu. Paste that link into an email or the Web tool of your choice.”