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What is CPM?
CPM stands for Cost Per Mille. It is also known as Cost Per Impression. It is equal to the cost of 1000 impressions or page views.
CPM-Cost Per Impression. Answers.com. Wikipedia, Wikipedia, 2007.
|  | This is part of the Pay-Per-Click toolbox used by advertisers like google adwords.
This unit of measure is used for
classified ads
,
text links
, and
banners
. It differs from pay-per-click, where you are charged each time someone clicks on your ad. With cost-per-impression, you're charged every time your ad is seen.
Another very important difference is price. Cost-per-impression can be less economical. An
ezine
with a circulation of 500,000 might charge $100 to insert your ad. That makes your cost-per-impression 20 cents. But there's no guarantee anyone will click on your ad. Advertising in well known, reputable, ezines increases your chances of being seen.
If you spend that same 20 cents on a good
keyword
, and that same $100 on a
pay-per-click
campaign, you get 500 clicks on your ad. We're not saying that pay-per-impression isn't worthwhile, it certainly is! But you should be very careful where you spend your advertising dollars.
Make sure you choose ezines,
newsletters
and websites that contain
content relevant
to your business. Tightly target your audience.
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