The experimental Google Social Search service went live on 26th October, 2009 at the Web 2.0 Summit in San Francisco. Google Social Search helps you find relevant public web content from people in your social circle via your Google Account. For example, if you search for [New York], Google Social Search includes your friend’s blog on the results page under the heading “Results from people in your social circle for New York.” And it should be available for everyone to try by the end of the day.

Google Social Search is good news because you can now get additional search results whenever you query Google for information. Those additional results do not appear based on any algorithm or Google-biased data but it comes from your social graph, the people in your social circle that Google knows about. However for this, Google must know about your social circle. This is possible if you have added a Google Profile, or use Google Reader, or Google Chat.

With Google Social Search, you will be able to find relevant public content from your social circle easily; your social circle consists of contacts from Gmail and sites listed in your Google profile; you can improve your social search results by expanding your social circle by creating a Google profile and encouraging your friends to publish content online.