11.6.1 CPM
CPM stands for cost per thousand impressions (M is the Roman numeral for a
thousand). This means the advertiser pays for every thousand times the advert
loads on the publisher’s page. This is how a campaign is normally priced when
brand awareness or exposure is the primary goal.
CPM rates for rich media adverts are usually higher than for standard media
adverts. This is often based on file size.