I'm concerned that any competitive bid site like this will lead to the foreigners underbidding Americans, a la elance & oDesk. How will your service avoid that?
I'm ready to compete with anybody, as long as folks know how good I am - so I don't end up competing with a newbie at .1 the price that they will never deliver on.
1) Invite only referral system - You only get in if someone vouches for you -- keeps quality up, probably keeps your cost up as well, if you want bottom of the barrel you go to one of the other places.
2) If it ends up being completely open, then people can sort by third-party signals (github followers, stackoverflow karma, quora karma, linkedin connections, etc.)
I think I would spin it and make it North America only (or is there something that already does that?). That would be a great selling point for a lot people.
The one feature I like about vWorker is that, when posting a job, I can limit the potential contractors to "mature economies," defined as the US, Western Europe and Australia.
I'm concerned that any competitive bid site like this will lead to the foreigners underbidding Americans, a la elance & oDesk. How will your service avoid that?