We all know what it’s like to get a bit of help when you’re looking for it. Online, that advice can come from a number of places: a tweet, a shared video, or a blog post, to name a few. With Google Social Search we’ve been working to show that content when it’s useful, making search more personally relevant.

We think sharing on the web can be even better--that people might share more recommendations, more often, if they knew their advice would be used to help their friends and contacts right when they’re searching for relevant topics on Google. That’s why we’re introducing the +1 button, an easy way for Google users to recommend your content right from the search results pages (and, soon, from your site).
Official Google Webmaster Central Blog: Introducing the +1 button
how do you think about this +1 button? do you think it will impact our site's ranking?