1) It sounds like companies are hand picked. On the other side: How do you filter for great developers? I'm sure you can't assume every prospective employee signup is a top-tier developer. Do you have some algorithmic, human, or other process?
2) As someone about to graduate and transition to a PHD program after the summer, I'm looking at technically challenging summer internships. I'm sure there are other prospective interns. Do you have any plans to support matching summer internships?
3) Assuming a github profile is the only "resume" your site accepts (implied by another comment here), where do developers list journal and conference publications? (Apologies in advance if this assumption is wrong -- I haven't signed up due to reasons mentioned in question #2.)
Thanks!