CPM's frequently used in advertising to represent cost per thousand (where M's the roman numeral of 1000). When used in online advertising it relates to the cost per thousand page impressions. CPM's usually referred to the number of clicks registered in a website by the readers. Google calculates ad revenue for websites based on CPM.Project Management Critical Path Method Certified project manager Culture Cash prize monies Commerce Certified Property Manager Corporate performance management… (More on Cpm)