Noted: When I visited the University of Virginia last year, I saw a Skype guest speaker in action. Siva Vaidhyanathan, a professor of media studies there who frequently explores new educational technology, had agreed to give a half-hour talk via Skype to a friend?s class at the University of Wisconsin at Madison?s library school, and he let me sit in. A few minutes before he was to appear, he headed to his faculty office, logged onto Skype, and donned a headset. A Webcam built into his monitor broadcast his image, and thanks to a camera on the other end, he could see the classroom full of eager students. He spent a few minutes on prepared remarks, and then took questions. Afterward, he joked that his friend now owed him a beer, or else a guest lecture in return.