Msg#: 3211816 posted 7:01 am on Jan 8, 2007 (gmt 0)
Google matches keywords then ads for the Content Network. I'd expand, but Google Help just says it much more eloquently than could I...
How does Google target AdWords ads to content-based web pages?
The technology that drives AdWords contextual advertising comes from Google's award-winning search and page ranking technology. Based on a sophisticated algorithm, we can comprehend a page's meaning and then figure out which keywords relate best to the content page. Then, we match ads that are precisely targeted to the content page based on the associated keywords. This means that in addition to reaching customers who specifically search on your keywords, you can now reach customers who view Web content directly related to your AdWords ads.