Having found a cure for cancer, solved the world's financial crisis and ended global warming, some guys at Stanford University figured out a way to embed moving video into an existing video clip, thereby assuring that every get-rich-quick Adsense troll will be plastering video advertising into their otherwise boring home videos and bragging about how easy it is to make money online.
More advertising. Yippie!
Here's a demonstration video, which also shows you that YouTube is now playing back clips in a 16:9 format. Great for high res stuff, but that means pillar boxing for everything that wasnt shot in HD. To understand a little more about pillar boxing, check out our previous article.