I’ve been using the Google Chrome extension Extension.fm for about 2 weeks now and it rocks. Check out the introduction video if you’re into online music. Basically, Extension.fm recognizes when an MP3 file is present on a web page and adds it to your personal library in the browser. This library is always playable, even when you are not on the original site anymore that contains the MP3. The extension is currently in beta. When I’ve got some new invitation codes I will tweet it out (@carpy).
