Interesting presentations to watch later:
https://www.youtube.com/watch?v=31D94QOo2gY
https://www.youtube.com/watch?v=1fszkxcJt7U
https://www.youtube.com/watch?v=0duYxPIx8gU
To-watch list
原文：http://www.cnblogs.com/CarrieCui/p/4553379.html
