Google Has announced a new way to share and recommend results straight from Google Search and Search Ads(Adwords). its Called “+1” (Plus one).
it will be slowly rolling out in English on Google.com. If you can’t wait, sign in to your Google account and go to experimental search site.
Initially, +1’s will appear alongside search results and ads, but later they’ll appear in many more places (including other Google products and sites across the web).