3. University of Cambridge
[youtube]http://www.youtube.com/watch?v=MXLg9nsuo9I[/youtube]
2. Stanford University
[youtube]http://www.youtube.com/watch?v=_miByI2Q2Iw[/youtube]
1. Massachusetts Institute of Technology (MIT)
[youtube]http://www.youtube.com/watch?v=bd7nFEea0t0[/youtube]