Changes

'''CPA''' (Cost Per Action) represents an advertising campaign pricing model which earns income based on direct results. Other advertising campaigns pay for a given number of impressions ([[CPM]]) and even for a given number of visitors ([[CPC]]). Some of the most used forms or CPA are : affiliate and referral programs. If we take banner ads, the CPA represents the cost the advertiser pays to the website publisher every time a specific user-action is initiated. <ref>[http://icannwiki.org/Domaining_Glossary Domaining Glossary]</ref>

'''CPA''' (Cost Per Action) represents an advertising campaign pricing model which earns income based on direct results. Other advertising campaigns pay for a given number of impressions ([[CPM]]) and even for a given number of visitors ([[CPC]]). Some of the most used forms or CPA are : affiliate and referral programs. If we take banner ads, the CPA represents the cost the advertiser pays to the website publisher every time a specific user-action is initiated. <ref>[http://www.investorglossary.com/cpa.htm CPA definition]</ref>

==Short overview ==

==Short overview ==

References

References

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