Grooveshark is internet radio allowing you to create widgets and whatnot. I created an account for ImmInst, and am going to upload .mp3s of audio lectures, conference talks, etc.
Aubrey's TED talk is already on grooveshark, but i want to get more stuff up there. Let me know if you have audio files, or feel free to point me to em.
[Feel free to move if this is in the wrong forum]