Google announced a policy change on Friday that lets the company create sponsored endorsements based on reviews it collects from YouTube, Zagat and other Google-controlled sites. In practice, this means that after November 1 (when the policy goes into effect), you may see yourself appearing in ads. Some people will be fine with this — after all, if you like (or hate) the product, why not tell the world? And Facebook does it too (despite a big legal headache). But others will resent Google turning them into product pitchmen. If you’re in the latter group, THIS LINK will show you a box. Uncheck that box and hit Save and you will see a message, confirming your selection. If you think your friends will be just fine without your automated endorsements, hit “Continue” and you’re all good.