I just created a last.fm account and added a playlist as well as a player in the sidebar of the blog. Last.fm is a social network and internet radio syndication site. It is really useful.
The last.fm application uses an “audioscrobler” service to register what you’re listening to. It can attach itself to foobar2000 and Windows Media Player as well. This means that your profile page will have a record of what you’ve listened to and it can use it to recommend music to you.