Google implemented another button which is called the +1 button which appears on the side right after the link on each search engine result. See the image below for illustration.
This is where the +1 button appear on search result
You have the option to undo the +1 button after pressing it
This Google +1 button would help the users or readers which among the webpage are relevant on the search engine result page based on the +1's number of recommendation. This is another feature of telling people or friends that you recommend a certain webpage discovered after doing your search. Without sending an email, you can tell your friends "hey! this is something cool and useful" by just pressing the +1 button feature. The video below source released officially by Google:
This new feature is now running Google.com english.You may also opt to join the Google Experimental Labs.
Just like Facebook "like" button" the number of people "likes a particular webpage" only shows that it is the best recommendation or something cool for the users.
Do you think this feature is the answer of Google to Facebook "like" button" ? I'll leave that query to you...
