Recently Google has rolled out the +1 button, which is shorthand for “this is pretty cool” or “you should check this out.” By that, did you already add +1 code into your website or blog? Your +1’s can help friends, contacts, and others on the web find the best stuff when they search. Google added this as their one of the algorithm to improve their over all search quality.
According to Google:
+1 helps people discover relevant content from a website, a Google search result, or an ad from the people they already know and trust. Adding the +1 button to your pages lets users recommend your content, knowing that their friends and contacts will see their recommendation when it’s most relevant in the context of Google search results.
When a signed-in Google user is searching, your Google search result snippet may be annotated with the names of the user’s connections who’ve +1’d your page. If none of a user’s connections has +1’d your page, your snippet may display the aggregate number of +1’s your page has received.
Content recommended by friends and acquaintances is often more relevant than content from strangers. For example, a movie review from an expert is useful, but a movie review from a friend who shares your tastes can be even better. Because of this, +1’s from friends and contacts can be a useful signal to Google when determining the relevance of your page to a user’s query. This is just one of many signals Google may use to figure a page’s relevance and ranking, and we’re constantly tweaking and improving our algorithm to improve overall search quality. For +1’s, as with any new ranking signal, we’ll be starting carefully and learning how those signals affect search quality.
For my understanding, basically you are trying to connect Google search results with +1. However, Google will not throw search results based on +1 ranking because in that scenario, content, keyword density and other SEO algorithm will become irrelevant and people will start giving thumbs up to get their site ranked up. And ultimately, search users will stay away when they wont get the relevant results.
Here has an earlier very detailed Google +1 Review Article from Aaron Peter, a web performance optimization consultant, do check it out.
Since Google is getting more social, its web analytics tools are no exception as well, Google Analytics and Google Webmaster Tools have added new tools for tracking the impact of tweets, likes, +1s and more on your website’s traffic.
So as a webmaster, what you need to do now? I suggest you add the +1 code to your website and track the difference, you can find the +1 code from your webmaster tools, since it is added in Google webmaster tools, therefore I think it is going to boost the SEO.