If you haven’t tried a free MOOC, I’d do it sooner than later. In recent weeks, the whole MOOC project took a hit when a University of Pennsylvania study found what was becoming empirically obvious — that MOOCs generally have very low participation and completion rates, and what’s more, most of the students taking the courses are “disproportionately educated, male, [and] wealthy,” and from the United States. This study, combined with other disappointing experiments and findings, will likely make universities think twice about sinking money into creating MOOCs (they can cost anywhere from $15,000 to $50,000 to develop). It might take another 6-12 months to see the shift. But I’d hazard a guess that this January might be the peak of the free MOOC trend. Enjoy them while they last. Whatever their shortcomings, they can be quite informative, and you can’t beat the price.