avalon37 - 10:10 pm on Dec 10, 2012 (gmt 0)
I blocked all Ad Network except Google and 2 others a few days ago. So far my CPC prices and Page RPM are way down causing me to worry. This is an account that gets about 4,000 adsense clicks per day so being down almost 10 cents per click is concerning. That said, my prices being down might not have anything to do with blocking ad networks.