Pay
per click
Pay per click, or PPC, is an advertising technique
used on websites, especially search engines. Pay per
click advertisements are usually text ads placed near
search results; when a site visitor clicks on the advertisement,
the advertiser is charged a small amount. Variants include
pay for placement and pay for ranking. Pay per click
is also sometimes known as Cost Per Click (CPC).
The most popular pay-per-click search engines are Google
AdWords and Yahoo! Overture, followed by Findwhat, Shopping.com,
NexTag, Bizrate and Pricegrabber. Depending on the search
engine, minimum prices per click start at US$0.01 (up
to US$0.50). Very popular search terms can cost much
more on popular engines. Abuse of the pay per click
model can result in click fraud.
PPC engines can be categorized in "Keyword"
engines and "Product" engines.
* 1 Keyword PPCs
* 2 Product PPCs
* 3 Service PPCs
* 4 See also
Keyword PPCs
Advertisers using these bid on "keywords",
which can be words or phrases, and can include product
model numbers. When a user searches for a particular
word or phrase, the list of advertiser links appears
in order of bidding.
The top PPC Keyword search engines are:
* Google AdWords
* Genieknows
* Yahoo! Overture (previously GoTo)
* FindWhat
* GoClick
* Enhance Interactive (previously Ah-ha)
* 7Search
* Kanoodle
* ePilot
* Search123
* SearchFeed
Product PPCs
"Product" engines let advertisers provide
"feeds" of their product databases and when
users search for a product, the links to the different
advertisers for that particular product appear, giving
more prominence to advertisers who pay more, but letting
the user sort by price to see the lowest priced product
and then click on it to buy. These engines are also
called Product comparison engines or Price comparison
engines.
The top PPC Keyword search engines are:
* BizRate
* NexTag
* PriceGrabber
* Pricescan
* Pricewatch
* PriceLeap
* Shopping.com
Service PPCs
"Service" engines let advertisers provide
feeds of their service databases and when users search
for a service offering links to advertisers for that
particular product appear, giving prominence to advertisers
who pay more, but letting users sort their results by
price or other methods. Some Product PPCs have expanded
into the service space while other service engines operate
in specific verticals.
Examples:
* NexTag
* SideStep
* TripAdvisor
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