Microsoft Education Labs

Who says Microsoft is only in it for the money? Well, ok, they are. But they also do a lot of neat research projects.
This site has a few cool prototypes for educators. I'm sure some of you would like the Math Worksheet Generator:

http://www.educationlabs.com/Projects/MathWorksheetGenerator/Pages/default.aspx#

Enter a math problem and the program analyzes it. Then it creates a worksheet with similar problems. Neat!