"Copyright law is complex enough-throw in an instance of international remixing by young nerdfighters, and you have a real mess. But in the hands of author John Green, it's the basis for a pretty cool video. "
Cool!
I remember working on history curriculum within my school, beholden to the 'pet' topics of my peers. With this kind of access to class work, it broadens the peer group hugely! Not to mention the multitude of variations within topics...