Flat World Knowledge - интересная бизнес-модель

We preserve the best of the old — books by leading experts, peer‑reviewed and developed to high editorial standards, fully supported by review copies, teaching supplements and great service. Then we change everything. Our textbooks are:

  • Free online
  • Affordable offline
  • _Open_–licensed
  • Customizable by educators

Educators choose the book — students choose format and price. Everybody wins.

via flatworldknowledge.com

Учебники онлайн - бесплатно. Скачать, купить в бумаге и т. д. - за деньги. Получили допинвестиции от Бертельсман.
И всё под Creative Commons. Молодцы.