I find it amazing and inspiring what some people manage to achieve almost by accident. They start out simply helping someone, doing what they love and it mushrooms into something much bigger without their really planning it. There is a lot of power in following your passion :-)
Take a look at Seth Kahn and his Kahn Academy or watch this PBS NewsHour video on the Khan Academy and Salman Khan .
A fascinating story. I wonder what in initiatives like this mean for the future of education?