SEO, PPC & AIO Guides » Ad Pricing Guide » CPM Definition » Buying Ads On A CPM Basis The simple answer is: when you have enough time to shop around. Buying ads on a CPM basis may seem like a bad idea ...
SEO, PPC & AIO Guides » Ad Pricing Guide » CPM Definition » Selling Ads On A CPM Basis The simple answer is: if you are getting a reasonable amount of money for your inventory. Selling ads on a CPM ...