Measuring ad spending on social network sites is as much of a work in progress as is defining social networking. With so much of the business being created almost on the fly, there is very little concrete detail on which to pin an estimate.

A woman in a vegetative state for five months appeared in brain scans to imagine playing tennis and to respond to commands, researchers reported on Thursday.

You can tune out all the scare talk about Peak Oil for a while—probably a long while. Peak Oil is the theory, on the verge of becoming conventional wisdom, that the world’s petroleum supply is topping out and will not be able to meet global demand soaring along with the economies of China and India. [...]

China:  China’s fast investment growth, which many worry could spark economic overheating and financial problems, is a result of excessive money and credit supplies, said a senior economic official in Xiamen Friday.