The launch of the Google +1 button

Google +1 button, is an easy way for users to recommend your content right from the search results pages. The +1 button doesn’t affect the AdSense ad units on your site, but it can improve the way your pages appear in Google search. We’re also working on a +1 button for sites. If you want to be notified when the +1 button is available for your site, you can sign up for email updates at our +1webmaster site . Find out more here.

Check out this video