Anyone who's a regular Google search user will know that the only way to avoid the company tracking your online activities is to log out of Gmail or whatever Google account you use. Not any more. As of last Friday, even searchers who aren't logged into Google in any way have their data tracked in the name of providing...

Forty years after the internet first took shape in the form of the ARPANet in the US, an unusual challenge seeking to test the power of online communication has been won by a university team. A group from MIT in Cambridge, Massachusetts, managed to solve a geographical puzzle set by the US Defense Advanced Research Projects Agency, or DARPA....

We've seen light used as a way to transfer information in public settings before, but very little of such technology has made it off the drawing board recently. Nevertheless, there are high hopes for a new method using LEDs to speak to mobile phones. The technique comes from NEC and Toshiba, whose researchers are suggesting that flashing LEDs...