khanacademy:

A few weeks ago, the Gates Notes team came down and interviewed the team here at the Khan Academy and all of the great students, teachers, and administrators participating in the pilot program over at the LASD. We’re excited to be able to share this with everyone because of how this experience has helped to inform many of the recent improvements to the Khan Academy. The Gates Notes team managed to capture a bunch of really interesting footage, so make sure to check out all of the videos:

http://www.thegatesnotes.com/TED/Speakers-Topics/Sal-Khan/