Google might soon quit surprising you with ridiculously off-target ads in your search results and Gmail. Or, you may finally find out how they deliver ads that are strikingly right-on. The search leader has announced an upcoming feature called "Why These Ads?" The company will also launch an Ads Preference Manager that is designed to let users make changes to improve the site's ad targeting or to block unwanted ads. Google created "Why These Ads?" to give users information about why they see a particular ad and see why Google thinks it is personalized to a particular user.
e-Commerce Times