Pay Per Impression (PPI):
- An advertising pricing model in which advertisers pay based on how many users were served their ads.
This isn’t used as often since there can be third party interference in counting impressions. I’ve been told that search engine crawlers can interfere with the impressions, although I’m honestly not sure how accurate that is.
If you know a program that uses PPI, share!
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Glossary Definition From ABC’s of Online Marketing by Alexandra Wharton, Issue 22, Revenue Magazine
