When you are googling any stuff you might see a +1 button after some days. Yeah, Google is trying to introduce the +1 button in its search, which is currently available on Google Labs open as for experimental purpose. The so called +1 button is just a recommendation that you leave behind to anyone including your friends and families. It will have a same kind of functionality like the LIKE button on facebook. Check out the the following video for more info.
Further Reading:
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