I love YT it really has a lot of good stuff, math, history, english, etc science! MUSIC AND ARTS EVEN!
it is so helpful, but we do have to use it with caution cause we dont knwo some of the places they come from and how accurate it is.
Speaking of you tube-- Have you guys seen this guy? He's I love his videos. Especially this one http://www.youtube.com/watch?v=zkzghAIXrTQ on cow tipping