This report estimated that by 2010, worldwide advertising
spending will exceed $500 billion. As you can imagine, such a gigantic flow of money
requires a similarly gigantic infrastructure. Of course, the most common advertising formats
??”print, radio, and television??”have a relatively long history, with a very entrenched
methodology for analyzing how money is spent. On the other hand, web advertising is a
relatively new phenomenon, and many organizations do not have a coherent system for
tracking Internet advertising.
Perhaps the most popular online advertising system is Google AdWords, which
allows people to buy text advertising space in small blocks to the right of Google??™s main
search results. Additionally, Google allows Google AdWords ads to be placed on other
web sites using the Google AdSense program, which further increases the potential market
of Google AdWords advertisers.
Ads in Google AdWords are priced on a per-click basis, so the more your ad is clicked,
the more you pay, and you pay only when people click your ad.
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