In a recent blog post Rebecca Galley introduced the OLDS-MOOC Badging Strategy and the nine badges that will be associated with the MOOC. The first part of the post expands on some of our thinking behind the strategy by using a pictorial representation to explain the place of the badges in the course. This is predicated on (a) the idea that a course, just like a novel, a movie or a video game, contains a broad central 'story arc' - a 'learning arc' or journey with a start (beginning of course) and an end, and (b) the idea that there are different types of badge that have different relationships with this learning arc. The second part reflects some of our initial critical consideration of what the roles and benefits of badges may be. As the post is intended as a discussion piece, we welcome your thoughts and responses.