SHOUTcast is an internet radio app that lets you listen to radio stations worldwide. But I just discovered that you can set up your Windows Home Server to be your very own, personal SHOUTcast server, which lets you listen to internet radio anywhere in your home. The steps are posted here on the We Got Served blog. The instructions are a bit involved for reposting here, but it could definitely be a great weekend project for WHS'ers. And the best part is, it's free!