That was part of Google's SearchWiki experiment. http://googleblog.blogspot.com/2008/11/searchwiki-make-search-your-own.html http://googleblog.blogspot.com/200

That was part of Google's SearchWiki experiment. http://googleblog.blogspot.com/2008/11/searchwiki-make-search-your-own.html http://googleblog.blogspot.com/2008/11/searchwiki-make-searc... That experiment was replaced by Google "Stars" in March 2010 because, according to Google: > In our testing, we learned that people really liked the idea of marking a website for future reference, but they didn't like changing the order of Google's organic search results. http://googleblog.blogspot.com/2010/03/stars-make-search-more-personal.html http://googleblog.blogspot.com/2010/03/stars-make-search-mor... I personally think there is much more going on here than Google admits.