It's a totally unexpected PageRank update for Webmasters - before the year end! No one had expected a new Google Toolbar PageRank update after the recent one in February, 2013.   Toolbar PageRank is the ‘simplification of real PageRank' – which is a complex algorithm. Google usually throws a new PR update on quarterly basis.   Here is the list of earlier PR updates from Google: 4 February 2013 7 November 2012 2 August 2012 2 May 2012 7 February 2012 7 November 2011 August 2011 July 2011 June 2011 January 2011 April 2010 Dec 31, 2009 30 October 2009 27/28 May 2009 June 2009 1 / 2 April 2009 30-...