ReadWriteWeb

Flat World Knowledge started out with a revolutionary idea, which was to start creating and publishing college textbooks that were absolutely free online. Its business model is to offer the option for students and teachers to print textbooks in whole or part at a fraction of the cost of a standard hardbound college textbook. In addition it offers audio book versions, study guides, web quizzes and digital flash cards for a fee. And that business model seems promising enough that it has passed the VC funding test to the tune of 8 million dollars by the venture funding firms Greenhill SAVP, High Peaks Venture Partners and Valhalla Partners.