Hogwarts Is Here: free, online classes in the same subjects studied by Harry, Ron, and Hermione. Not only that, but you can also become a Hogwarts Professor. Slate‘s Alex Heimbach writes: “The website works as a sort of cross between a MOOC (massive open online course) and an RPG (a role-playing game, like Dungeons & Dragons). You start by creating an account and choosing a house. (No sorting hat here, unfortunately.) I went with Ravenclaw, which seemed fitting for an optional intellectual endeavor. I wasn’t alone in that decision: Ravenclaw is the second most popular house (after Gryffindor, of course) and has the most house points (which you gain by completing assignments).” Read his full review here.