I was annoyed that the streaming MP3 URL for Democracy Now (hosted on archive.org) includes the date of the show, which makes it impossible to have a static link in iTunes for the most recent program. Without having to visit the site each morning to get the current program's URL, I wanted a way to automate the process so I would only have to click on an unchanging track name in iTunes to hear the show of the day. So I wrote this AppleScript, which, of course, could be modified for other programs and URLs.
I use Cronnix to run this script each weekday morning. The script checks for a URL track in iTunes ending with "Democracy Now Stream," and replaces it with another track named "2005-0506 Democracy Now Stream" (for example), so I only see one stream and I know that it's been updated.
[robg adds: If you listen to anything that has daily updates and ever-changing URLs, this script should offer some ideas for making them into static URLs for use in iTunes...]
Mac OS X Hints
http://hints.macworld.com/article.php?story=20050506195912274