The acronym CPM hides the concept of Cost per Mille, an important measurement in digital advertising. CPM stands for cost per thousand impressions and indicates the price advertisers pay for their ad to appear a thousand times on a website or digital platform.

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CPM is used to measure the cost of advertising in relation to the exposure of the ad. It helps advertisers and ad buyers assess the cost-effectiveness of their campaigns and compare different advertising opportunities. A lower CPM means that the cost per impression is more favorable, while a higher CPM may indicate a more expensive exposure for the ad.

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By understanding the CPM value of different advertising venues, businesses can make more informed decisions about where to place their ads to maximize their budget and reach the right audiences in a cost-effective way.