Did this as well about a year ago (after referring many of my classmates), and it works. Getting the remaining referrals through AdWords took a bit more money t

Did this as well about a year ago (after referring many of my classmates), and it works. Getting the remaining referrals through AdWords took a bit more money than $25 though (about $30 for 10 referrals). Maybe could have improved the wording of the ad...