Blueprint for Building Habit-Forming Products is #15 on Amazon's new free books Posted by jrrera on Tuesday December 31, 2013 @02:40PM from the nirandfar.com dept. http://www.nirandfar.com/2013/12/i-kept-my-promise-hooked-is-finally-here-and-free-for-the-next-5-days.html ( Read More... | 4 comments | 16 points | on HN )