Last month I gave TribalFusion 290 000 impressions. They only managed to fill about 104,000 impressions and I got a net revenue of about $100.50. So that's less than $1 CPM.
It really comes down to what kind of traffic you send them, if you send a lot of international and it doesn't convert for the advertiser they'll run more TF direct and less of the higher paying ads.
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