Khan Academy!

[tisnman]

Yeah ha ha i stink, but this google endorsed project has given me a desperately needed refresher in math

and it tracks your progress with energy points(oh jesus, mafia wars), making it completely addicting, but in a productive way ;D

Use numpad

http://www.khanacademy.org/

 

[Lord Sinister]

My first thought on seeing the topic title was 'I thought Genghis was already dead.'

More seriously, looks like a very interesting website, could well be useful.

 

[Ian]

I watched the guy who made this introduce it at that TED conference. It is a pretty useful tool.

 

[ISGC]

KHAAAAAAAAAAAAAAAAAAAAAAAAAAAAAN