MOOCs (Massive Open Online Course) are growing in popularity every day. Not surprisingly, because these are educational courses you can access online; they are massive because there is theoretically no limit to the number of people who can sign up to them, and they are open because they are almost always free to take and often free to copy and redistribute too. MOOCs provide digital learning resources and use tests (or ‘problem sets’ in the lingo) to help learners self-evaluate their progress; and while they do not tend to offer academic credits, successful students can often ‘buy’ a certificate as evidence for