In late 2005, when YouTube was just a few months old, one its co-founders announced that the site’s users were consuming the equivalent of an entire Blockbuster store each month. Today, 300 hours of video are uploaded to the site every minute. And Blockbuster… Well, kids, Blockbuster was a video rental shop offering films on DVD and VHS. VHS tapes were like giant cassettes. Cassettes were… Oh, never mind. From The Telegraph: How YouTube Changed the World.