Github is Your New Resume
What about:- those that use different VCSs?- people who don't have the time (due to their job or other circumstances) to work on things they can open source?- people who work at companies that essentially own everything they might do so you can't work on open source? and- companies where hiring goes through HR who won't know what the hell Github is?Having work on Github is probably a good idea for college students and recent grads but once people are employed it's value drops off significantly (IMHO). From a hiring perspective, you're also greatly limited your field of candidates if you only look at Github profiles.