Run your data through call center to verify. If you need good quality leads, you need to take that one step to ensure you get the quality. Charge back leads which you are not happy with. Every single network will have some fraudsters around.
I've been considering ads for the company I work for. I know about the basics Google, Yahoo, Bing. What do you guys think of Facebook ads? Any other recommendations?
What is PKM?
I use Peerfly mostly, they are pretty good as far as cpa networks go.