+1 personalisation - ads on non-Google websites

+1 on non-Google sites

+1 personalisation on non-Google sites

You can choose whether Google may use your +1's and other profile information to personalise your content and ads on non-Google websites, including applications or other clients. Enabling +1 on non-Google sites does not share your information or your friends' information with the site that you're viewing. Learn more
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