Free Amazon Prime For Students

Amazon Prime has been running a deal for awhile where all students who sign up through their special link will get a free one-year subscription. Amazon Prime is one of the best services I've ever gotten as a student, who can argue with free 2-day shipping on almost every item that Amazon sells? All you need (I believe) is an .edu email address, so teachers and anyone else in an academic institution can take advantage of this also.