Igor showed me this neat Chrome experiment that makes the Arcade Fire song, Reflector, interactive. You should check it out, it’s pretty fun to manipulate the internet in real time, you just have to be running Google Chrome as your browser.
Chrome experiments are seemingly random web experiments that developers work on to test the limits of programming. They all seem a little impossible to me, but in a wonderful way. If you don’t want to each the whole music video (which I think is part of the fun!) you can at least play with the technologies here.