Consumers won’t be able to opt out of the changes, which take effect March 1. And experts say the policy shift will invite greater scrutiny from federal regulators of the company’s privacy and competitive practices.

More: http://www.washingtonpost.com/business/technology/google-tracks-consumers-across-products-users-cant-opt-out/2012/01/24/gIQArgJHOQ_story.html?wpisrc=al_comboNE_b