Best Paid traffic source anyone?

i used sitescout before with a complete flop in ads. but any other better networks
???

Try Outbrain.com. It is cheap.

buysellads is the ads network I have tested recently, it`s pretty good, and affordable.

I just revisited sitescout and found some very suspicious looking new sites that belong to the same category. It has quite a bit of impression, very low CPM but they all look like the same blog template, similar site categories just with different content...I wonder if someone's trying to game sitescout...has anyone noticed this before?