In Latin, “mille” means 1000. In the advertising world, “cost per mille” or “CPM,” refers to the cost to display one ad to 1000 viewers …
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What is Cost Per Mille Advertising (CPM)? – Social Proofy Marketing 101
In Latin, “mille” means 1000. In the advertising world, “cost per mille” or “CPM,” refers to the cost to display one ad to 1000 viewers …
source