While it is becoming increasingly common (and easy) for lectures to be placed online as videos or podcasts, such media can often be very limited in their utility. For example, I missed a lecture last ...

A Princeton University program director ripped MIT for the university’s “chilling” decision to cancel an academic lecture that proved to be a stunning success. The smackdown between elite colleges was ...

Imagine you are taking a biology course. You're studying for an exam and would like to revisit the professor's explanation of RNA interference. Fortunately, a digital recording of the lecture is ...