Google today announced launch of Social feature +1, rival to Facebook Like button shows more relevant results and recommendations who +1’ed search results and ads. You need to have Google profile created and you need to logged into your Google account to +1 search results.
For now +1 button appears (watch the video below) beside search results and ads in English Google.com in United States. Or you can opt-in your self to see them in search results by logging into your Google profile and visiting experimetntal search site.
With Google profile you can able to view all your +1’s in one place and delete +1’s you don’t want to recommend. Soon like Twitter and Facebook like buttons Google +1 buttons for websites will be available, you can sign up here to get notified.