Streamzy

"Streamzy is simple to use: Search for music using the artist or song name, and select how many search results you'd like. The service goes out, grabs music from sites that host the music and make it available for streaming, and cleans up any bad results before you click Play. From there, you can click any of the songs in the search results to start streaming it, or drag it to the playlist window at the bottom of the page. The service starts you off with a default playlist; to add more you'll have to sign up for a Streamzy account (free)."

http://www.appscout.com/2008/05/streamzy_centralize_your_strea_1.php

http://www.streamzy.com/