The platform is able to offer completely free courses, receiving their funding through advertisements on the site, as well as, revenue when learners purchase printed versions of certificates. You do not have to purchase to be certified, but can if you desire a printed parchment to hang in your home or office. “Alison is what a fundamental re-think of the education system might look like.” ~Clayton Christensen, Harvard Business School Full Post:http://immenselysocial.com/alison-a-new-world-of-free-certified-online-learning/