Google +1 Button for chrome
Google +1 Button is a google chrome extension that allows you +1 and share the pages you think are worth visiting.+1’s can help your friends, contacts, and others on the web find the best stuff when they search. By installing the +1 extension, you can publicly +1 any page that you’re visiting with one easy click. Once you do, look for the “Share on Google+” option to start a conversation. From there you can comment, choose a circle, and share.
Download Google +1 Button