Organizing the world's information, socially

Director of Google China R&D gave a talk here this morning. It's a very good presentation, and even I, a bad English learner, understand almost all his points without the ppt slides.

Some points are representative:
(1) Social network, focus on the relationship between users on internet
(2) mobile application, due to hugh amount of mobile users
(3) for R&D, the most important thing is data. Without the data, or with noising data, we can do nothing. That's why they pay attention on Facebook, etc