Yesterday, Google rolled out its controversial behavioral advertising for beta testing, and announced that it will start offering ads based on behavioral targeting.

Google stated that its new behavioral targeting system will display ads based on online interests and activities of users. It will show the ads to the web surfers based on the kinds of sites they visit. The technology will read browsing history of users and then will display ads accordingly.

Google declared that it will start offering ads on YouTube and on its partner AdSense sites, based on its new behavioral targeting system.

Commenting on the new behavioral targeting system, Google product management director, Brad Bender said, "We're looking to make ads even more interesting."

In a company blog post, Google vice president of product management, Susan Wojcicki explained, "So if you search for digital cameras on Google, you'll get ads related to digital cameras. If you are visiting the Web site of one of our AdSense partners, you would see ads based on the content of the page."

Wojcicki said, "By making ads more relevant, and improving the connection between advertisers and our users, we can create more value for everyone. Users get more useful ads, and these more relevant ads generate higher returns for advertisers and publishers."