Look up above this article. A little higher, above the screen. Chances are that if you're on a laptop or even one of many desktops made in the last five years you'll see a Webcam built in. And that Webcam might end up saving you--and the environment--a little bit of power.
British inventor and self-described "ecogeek" Peter Hopton and his company VeryPC have come up with a piece of software, called PecoBOO, that uses open-source face detection to detect when you're looking at you screen and, more importantly, when you're not.
When you look … Read more