www.khanacademy.org I saw this on 60 minutes last night. Very interesting for families with young learners. Also the free app 3-D brain is interesting.
The irrational yet irrestible urge to know or make known. The CC is a "club" founded by a small group of medical professionals, who have made a pastime of turning medical cases and discussions into medically irrelevant history lessons, philosophical rants, and displays of one-upsmanship. The official premise, since the "club" was named, has been to exchange and discuss various books, movies, and ideas. Sometimes we eat sushi.