I think the best example of recruiting good members is the SumZero model. SumZero is a buyside investor site, where buysiders can exchange and rank investment ideas with each other. It was started by Divya Narendra of Facebook fame.
When I first signed up for SumZero, the application process was pretty extensive. It involved a phone call with Divya or one of the other co-founders to check you out and make sure you weren't just some wannabe, that you actually worked at an investment fund.
I actually think was critical early on to make sure the membership base was high quality and acted as a self-reinforcing mechanism to continue to attract good members.
When I first signed up for SumZero, the application process was pretty extensive. It involved a phone call with Divya or one of the other co-founders to check you out and make sure you weren't just some wannabe, that you actually worked at an investment fund.
I actually think was critical early on to make sure the membership base was high quality and acted as a self-reinforcing mechanism to continue to attract good members.