Master Sports!
Adsense is CPC type (cost-per-click).
--- you earn only when somebody clicks on the ads.
--- under Google ni siya... so extra careful jud
CPA is cost-per-action.
--- you earn when people do "act" on your ads like filling up emails or surveys or somethin' before they can see a page or content.
Most often, mas daku ka og igo sa CPA as compared to CPC.
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