Pay for placement
From Wikipedia, the free encyclopedia
Pay for placement, or P4P, is an Internet advertising model in which advertisements appear along with relevant search results from a Web search engine. Under this model, advertisers bid for the right to present an advertisement with specific search terms (i.e., keywords) in an open auction.[1] When one of these keywords is entered into the search engine, the results of the auction on that keyword are presented, with higher ranking bids appearing more prominently on the page.
When P4P was first introduced, controversy arose because seventy percent of Internet users were unaware that search results could be skewed as a result of such agreements,[2] which in some cases led to legal action.[3]
[edit] See also
[edit] References
- ^ "Search engines shift gears to increase profits". CNN. Archived from the original on 2008-02-21. http://web.archive.org/web/20080221002146/http://archives.cnn.com/2000/TECH/computing/12/11/search.engines.explored.ap/index.html. Retrieved 2008-04-11.
- ^ Gibson, Owen (2002-05-03). "BBC angers rivals by launching online search engine". London: The Guardian. http://www.guardian.co.uk/media/2002/may/03/bbc.newmedia. Retrieved 2008-04-11.
- ^ "Search engines sued over 'pay-for-placement'". CNN. http://edition.cnn.com/2002/TECH/internet/02/04/search.engine.lawsuit.idg/index.html. Retrieved 2008-04-11.
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