I know quite a few sites, with different niche, In general, CPC varies from $0.02-$10.00 CTR from .01%-20% CPM from $0.05 to $10 Revenue from $2 to $5000 per month They all asked, what is the important matrix people should use, I think CPM, based on CPC, and CTR, is the only fair matrix to compare sites (apples to oranges). Revenue will only depend on traffic and CPM, so it is really on how hard you can the traffic But just from a website comparison view, a great site should have great CPM! Am I right?
I make more with those Cost Per Conversion and Cost Per Impression ads. Because CPM need nobody to click to fetch $. I like Google in the past cause of its Referral System.