Official Google Blog: Search is getting more social

Late last year we released the Social Search experiment to make search more personal with relevant web content from your friends and online contacts. We were excited by the number of people who chose to try it out, and today Social ...<br />Extracted from: <a href='http://googleblog.blogspot.com/2010/01/search-is-getting-more-social.html'>http://googleblog.blogspot.com/2010/01/search-is-getting-more-social.html</a>