Let’s face it, summer is no friend to your brain. When you’re not busy killing it with beer, late night campfire parties or Michael Bay movies (seriously, he needs to be stopped), your poor grey matter gets boiled inside your noggin from taking on too much direct sunlight during weekend trips to the beach. To make up for the annual beating visited upon your poor noodle, we recommend treating it to some of the best free education on offer anywhere in the world. Do your brain a solid and direct your browsers to Massachusetts Institute of Technology's OpenCourseWare Program, our Cool Site of the Week.