How Twitter can make history by Clay Shirky

About this talk
While news from Iran streams to the world, Clay Shirky shows how Facebook, Twitter and TXTs help citizens in repressive regimes to report on real news, bypassing censors (however briefly). The end of top-down control of news is changing the nature of politics.
About Clay Shirky
Shirky, a prescient voice on the Internet’s effects, argues [...]

“Hooray! The Second Derivative of the Unemployment Rate Improved!”

Nate Silver,  statistician,  is ranked to be among the 100 most influential persons in the world by Times.
He has a blog at http://www.fivethirtyeight.com/ which is based very much on information search and statistics not only in U.S. but also in other countries. This is an example from U.S. with focus on the economic recession:
5.08.2009

Hooray! The Second Derivative [...]