Khan Academy

My favorite project and talk from GEL 2010 was this one by Sal Khan. His amazing Khan Academy is what happens when you sit down and simply share comprehensive knowledge on every subject imaginable and make it freely accessible to as many people as possible. 

http://vimeo.com/moogaloop.swf?clip_id=11731351&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1

Sal Khan at Gel 2010 from Gel Conference on Vimeo.