BlogTunes is a Java application that sends information from iTunes to blogging servers. Specifically, it takes information from the iTunes XML library and transmits song information via the trackback protocol.
click
here to see a MovableType blog that gets updated by BlogTunes.
1. download the application
2. edit the blogtunes.properties file
3. setup the iTunes Smart Playlist you pointed to in step 2
4. create a new blog category on your blog... make sure it can accept trackback pings
5. edit/create your webpage and insert tags that display last n pings for the blog category
6. launch blogtunes (bin/blogtunes.bat or bin/blogtunes.exe)