Markets in Everything: Free, Open Textbooks
Flat World Knowledge publishes college textbooks that are free online and open for editing. Its business model is to offer the option for students and professors to print soft-cover textbooks in whole or part, at a fraction of the cost of a standard hardbound college text.
The company announced this week that it has raised $8 million from Greenhill SAVP, High Peaks Venture Partners, and Valhalla Partners.
See the catalog here (including 6 economics texts and 3 finance).