Google has launched the “+1” button yesterday. Google has integrated it as a part of search results and Google AdWords and hoping it will be available for websites as well. Google’s product is 
looking similar of Facebook Like button but limitation of share information Like button or Twitter.
Google’s Rob Spiro, the product manager of +1 said, “Today we’re taking that a step further, enabling you to share recommendations with the world right in Google’s search results. It’s called +1—the digital shorthand for “this is pretty cool.” To recommend something, all you have to do is click +1 on a webpage or ad you find useful.”
“The primary benefit is that search gets better. It gets better in the user interface immediately, and we’ll look at it as a potential signal to improve search quality as well. I find social search extremely useful, especially with the recent updates. This change continues the evolution of social search, and it’s a natural progression to improve the search experience,” said Matt Cutts, a Google engineer who is most known for leading Google’s search spam fighting team but who also helped launch Google Social Search in 2009.
I am excited about using +1 button and hope you are excited too. 🙂