FineTune – Music Playlists
http://www.finetune.com/

Type an artist’s name, they create a playlist of related songs for you to listen to.
Create your own playlist! You hand pick each song or let them auto-complete with their recommendation technology. Explore the finetune community – browse artists, users, playlists and more. Listen to professionally managed playlists spanning todays most popular terrestrial radio formats. Embed your playlist in your blog or MySpace page. Also FineTune is a comprehensive music library, proprietary recommendation engine, and easy to use and its free! This has been added to World Wide Web Reference Subject Tracer™ Information Blog.