LOL!
But, seriously folks, here's two "pay per impression" (which is what I assume you meant by CPM programs) that have been around for years, and are still going strong;
ExitForCash - $3cpm exits
FPCTraffic - $3cpm or $1.25cpm popunders
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AdultAdBroker - Buy and Sell Your Flat Rate Banners, Links, Tabs, Pops, Email Clicks and Members' Area Traffic - updated January 2026