Google has incorporated a new affiliate advertising policy In January 2005, which is completely designed to provide a better user and advertiser facilities.
With this affiliate policy, Google is displaying one ad per search query for affiliates and parent companies sharing the same URL. This way, users will have a more diverse sampling of advertisements to choose from. As always, your ad will be displayed based on its Ad Rank for given searches, which is determined by a combination of your ad's maximum cost-per-click (price) and clickthrough rate (performance).
For instance, if a user searches for books on Google.com or anywhere on the Google search and content networks, Google will take an inventory of ads running for the keyword books. If we find that two or more ads compete under the same URL, we'll display the ad with the highest Ad Rank.
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Ram Kr. Shukla


