Now when you search something in Google and you are signed in, you should see a “share” link when you over Google search outcomes. I am showing you seroundtable.com image which tool from Google search
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Sean Liu then officially published it on Google+ saying:
Starting today, we’re rolling out a new experiment to show a Share link in Google search in place of the +1 button, making it easier for you to share a great website with your friends. Now when you click the Share link next to a result, you can add a comment about why you found it useful. You can then choose if you want to share it publicly or just to your Circles and it will post to your Google+ stream, making it easier for you to share directly from the search results page. This will appear for those searching in English.
Before, Google had +1 buttons in the search outcomes and then after that, they attemptedthank them buttons in the search results.