YouCube is one of these extremely useless tools you come across on the web until of course you find a use for it. And today I did. We were looking at music videos over time and how they have changed from the 60's through to 2010 and YouCube was the perfect tool for kids to see how video clips have changed with a 6 faced comparison. I am sure you can find a use for it too but it is just a bit of fun nonetheless. Check it out here.