In October 2009, Google announced their social search feature and it got a ton of buzz. A few months later they rolled it into the main stream search results via the left hand navigation and a social box element, normally at the bottom of the search results.

But Google knows it is not enough. We know Google uses some elements of social factors for ranking these days but again, limited.

In a BusinessWeek article, on page 3, the article talks about a Google +1 project. The article said:

The question is, will this be enough? Will this effort tell people Google doesn’t have to worry about Facebook or Bing? I don’t know but I am sure this is a top priority for Google.

Forum discussion at Google Web Search Help & WebmasterWorld.