Shooting for more people to see and click on ads, Google has introduced expandable ads to its AdSense network; the search giant has added rich media ad menu and third-party expanding ads to its AdSense network. Google has brought in expandable ads at the time when 70 percent of Google publishers are reporting less earnings with Google.

Google has explained that the publisher sites will display the ads, which they will be able to click on to make them expand into much large ads that overlay over the content of the page. The expandable ads may include film trailers, movie streams, video game clips, or multiple views of a product for sale.

According to Google, the new introduction "will not disrupt the end user because it has to be clicked on to be expanded, will never be double its width or height, the user may close the expanded panel at any time, it won't change your content, and it has to comply with their terms". And at Google AdSense Help, there is a comprehensive help section devoted to expanded ads.

Google has notified that either DoubleClick Rich Media or Eyeblaster will be applied to produce expanding ads, and the search giant does not permit ad expansions to be triggered by roll-overs to ward off accidental expansions that aggravate consumers and Web site owners.

Google has stated that for Google's other image ad offerings, the units can be purchased on either a cost-per-click or cost-per-thousand basis. Google has announced the immediate availability of the expanding ads the AdSense-ready sites that already accept image ads. These sites are only allowed to opt out of expanding ads with turning off all image ads.

Google has said that presently the option of expanding ad is only available to U.S. advertisers already participating in its third party ad serving program, a group that numbers in the hundreds. Those brands are putting ads on handpicked sites in the AdSense network with the help of Google's placement targeting option.

Google's competitor ad sellers, such as Platform-A, Microsoft, and Yahoo have long been offering expanding ads. The search giant has been slower than its rivals in offering rich ad formats.