1. Fist of all, do cpm ads usually pay for unique impressions per ad, or just for each visitor. In other words, would putting up 3 different ads get me 3 times as much cpm, or would it be just like having one ad up? 2. Would it be allowed to have 2-3 different cpm ads; each from a different cpm program/site? 3. Also, what seem to be the best cpm programs out there?
1. per impression, and you can put one of each ad type on a page - one leaderboard, one skyscraper, one rectangle - for a total of 3 ads per page 2. yes 3. see my sig
So with three different ads, I would be getting an individual cpm for each ad? So I'd get paid around 3 times as much with 3 different ads than I would with just one, even if they're all from one cpm company?