Source: BetaKit » Kno Adds Note Sharing, New Android App Preloaded on Samsung Galaxy Note 10.1
Not bad for $85m in funding.
Facebook and Newark Schools: About the $100 Million... - Businessweek
Brainy Gamer: Portal on the booklist
The Trouble With Online Education - NYTimes.com
Khan Academy (Coursera, Udacity, And a New Hope)