Just a quick warning, if you receive email from ad network called Affinity (www.affinity.com), DO NOT EVEN BOTHER REPLYING. They are total garbage, promise decent CPM rates for banners, but actually deliver total shit ads for next to nothing. The eCPM for 300x250 above the fold with majority of US/UK traffic was $0.01 - what a joke! This is the screenshot of their amazing CPM rates from their dashboard: It also took them 6 days to even display stats in their admin panel. I found other reports of people earning $100 minimum threshold for payment, and then their account was suddenly closed with no payment and no replies. Simply garbage, beware of Affinity and never work with them, you will save yourself a big trouble.