What Is Adsense How It Works

Secrets of Google Adsense revealed here.

What Is Adsense

AdSense
From Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/AdSense

AdSense is an advertisement serving program run by Google. Website owners can enroll in this program to enable text, image, and more recently, video advertisements on their websites. These advertisements are administered by Google and generate revenue on either a per-click or per-impression basis. Google is also currently beta-testing a cost-per-action based service.

How AdSense works
The webmaster inserts the AdSense JavaScript code into a webpage.
Each time this page is visited, the JavaScript code creates an IFrame with a src attribute set to the page's URL.
For contextual advertisements, Google's servers use a cache of the page to determine a set of high-value keywords. If keywords have been cached already, advertisements are served for those keywords based on the AdWords bidding system. (More details are described in the AdSense patent.)
For site-targeted advertisements, the advertiser chooses the page(s) on which to display advertisements, and pays based on cost per mille (CPM), or the price advertisers choose to pay for every thousand advertisements displayed.[9] [10]
For referrals, Google adds money to the advertiser's account when visitors either download the referred software or subscribe to the referred service.[11] The referral program will be retired in August 2008.[12]
Search advertisements are added to the list of results after the visitor performs a search.
Because the JavaScript is sent to the Web browser when the page is requested, it is possible for other website owners to copy the JavaScript code into their own webpages. To protect against this type of fraud, AdSense customers can specify the pages on which advertisements should be shown. AdSense then ignores clicks from pages other than those specified.

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