CPM – Cost per thousand
Is an online cost an advertiser pays per thousand impressions. If the CPM for a banner ad is $25 and you buy 1,000,000 impressions, your final CPM cost will be $25,000. Factors that influence a CPM rate include banner ad size, placement, list size, and site traffic. The higher the traffic to the site you’re considering to advertise on, the higher the CPM will likely be.