I think there is a viral angle. There were a group of friends at college, all CS majors and we competed on our grades. We all wanted to one up each other. I can see the ability to have a score board of some kind where you can share your grades with friends. This could help spread the word a bit.
I'm a little scared of being too social.
Re: Ask HN: My site isn't sexy or social, but I'm very proud of it: what's next?
#31Why?