Did you watch the “Dear Sophie” ad from Google promoting Google Chrome ? I did too, but looks some folks have watched close enough to find the Google +1 Extension for Chrome in action. One screenshot is worth 1000 words right .. so here you go ..
Google has recently added another feature to their optional labs, +1, for websites and advertisements in their search results. It works like the ‘Like’ button for Facebook by pulling in information that you and/or your friends might find useful based on other +1s.
You can make an attempt to opt-in to Google’s new +1 service in search results by heading over to the Google’s Experimental site and turning the service on. I did not realize that you can go to this page, officially called Google Experimental Labs, and turn web-based features like this on before.