I think you've hit the nail on the head here. We've had a similar experience building http://www.zonino.co.uk http://www.zonino.co.uk. Plenty of interest from

I think you've hit the nail on the head here. We've had a similar experience building http://www.zonino.co.uk http://www.zonino.co.uk. Plenty of interest from employers but without the traffic it's hard to justify charging. This is where sites like Stackoverflow really stand out because they already have a flow of relevant and highly engaged traffic.