This is a great app for Students, Teachers, Tutors and Business.
But i wanna make it BIG. Build a paltform worth billions allowing all documents being store in a cloud, shared and synchronized directly to/from the apps (web, iphone, ipad, windows 8 tablet and desltop, android, ... )
Allow comunication between users as if it was social.
Gather info for ads.
Provide high quality services not just for users but for businesses, tutors, universities, schools, etc.
note: Willing to move to America