"With the cost of college textbooks up 62% over the last decade, pressure is building for an alternative model of publishing: the free book. Five years ago, an author had to be very persistent --- maybe even a little crazy --- to try the new approach. But now a whole new infrastructure is springing up to make it easier. This is the third article in an intermittent series about what's going on in the world of free books."
kairosnews.org/node/4561
kairosnews.org/node/4561