This is a short treatise on the secret of entrepreneurial success, which extends easily to the secret of business success in general:
For more in this vein, these two books are recommended:
The Click Moment by Frans Johansson
Fooled by Randomness by Nassim Nicholas Taleb
Although the ideas of Creative Commons licensing and open access for research articles have gained some traction, extending the thinking to current books seems to be quite a stretch. Nevertheless, even in this unlikely corner new players and new paradigms are emerging, with the likes of unglue.it offering a way for making books free through a crowd-funding model.
Read more about Open Access Books.