Google is trying to compete with facebook’s like button. they released a social button called +1 (plus one), when you want to show that you loved the article (somebody said “like”), you press on the +1 button and the counter adds one.
Now you can add +1 button to your wordpress website, we suggest to wait a few weeks to see if it’s not just a “buzz” but if you want to add it here are the steps:
2) customize and choose the setting for your button.
3) copy the lines in the text area :
<!– Place this tag where you want the +1 button to render –><g:plusone></g:plusone>
and add it to your post or insert to a page in your theme.