We're doing something with Githib called Work for Pie. It aggregates info from Githib, Stack Overflow, HN, Bitbucket and gives you a score based on activity and participation. Then you get a profile where you can highlight code, languages, etc. Kind of a portfolio for developers. We're still in private beta, but invites will come pretty pretty quickly after you sign up. www.workforpie.com

I'll also plug www.gitalytics.com ;)