Elon Musk entrepreneurship lecture.
Interesting to watch him talk about SpaceX only days after their successful mission. In this clip (http://ecorner.stanford.edu/authorMaterialInfo.html?mid=382) he says based on historical data it is unlikely the mission will stay within the 15 billion dollar development cost and 2012 timeline. Not sure about the budget, but they made their deadline. Makes their recent success even more impressive.