Here is an incredible website for all things school:
http://www.stumbleupon.com/su/8QtWkq/:OtqKyNHK:ApQhb0uG/www.clearvieweducation.com/blog/2009/100-awesome-cheat-sheets-to-learn-and-do-everything-in-less-time/
and another
http://www.stumbleupon.com/su/2OJeRM/www.factmonster.com/
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