ExtensionFM

ExtensionFM is a browser extension for Chrome that turns the entire web into your personal music library. As you browse, ExtensionFM runs in the background indexing every MP3 file you come across, building a music library for you. ExtensionFM will continue to check the sites you've visited, adding new music for you to listen to every day. ExtensionFM was founded by Dan Kantor, Charles Smith and Marshall Jones and is based in New York City.