Here is a great list of free music sites that will stream music to your computer. Or if you like create a mix and share it like I did on Finetune on the right side of this page. It's fun to tell your friends you have your own radio station on the web. And this is the easiest way to do it. Make one and then embed it on your own site. It's free and easy. Many of the sites you have heard of like Pandora or LastFM. But many you will discover for the first time. Enjoy the music!