
If you’re new to the realm of Internet advertising, you could be hit with all sorts of acronyms that might not make very much sense to you. What do all these letter combinations mean? Here are a few of the most common examples.
CPM: Cost per thousand impressions. This would be the amount of money you would pay to have your advertisement (typically an ad banner) displayed on a site for one thousand page views.
eCPM: Effective cost per thousand impressions. This is the estimated cost for the same thousand page views as above, but it is based on actual performance through the other configurations described below.
CPC: Cost per click. This is the amount of money you’d pay for each “click” on your advertisement on a given website. Depending on the CTR (click-thru rate), the resulting eCPM can vary dramatically.
CPA: Cost per action. In affiliate marketing, this is the money you’d pay for each completed “action.” The “action” could be a generated lead, a referred sale, or any number of other actions that the site visitor would need to complete.




