Andrew McAfee in his speeches often quotes someone saying, "The internet is the world's best library, only the books are all on the floor." Andrew continues to clarify that we've reached a point where the books are not really on the floor. They're organised using means that are more sophisticated cataloging system that we can think of. A thought and a few words can get you to the resources you need. The strange, self organising, voluntary yet incredibly effective nature of the internet amazes all of us.