Learning doesn't have to formal, or expensive. As education becomes increasingly commodified the world over, here are four courses from the Massachusetts Institute of Technology (MIT) exploring ...

Web site Academic Earth is like Hulu for academic lectures, pulling free lectures from Berkeley, Harvard, MIT, Princeton, Stanford, and Yale into one attractive, easy to navigate site. It's incredible ...

Plus: a mission heading to the moon has successfully taken off This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology.