Google has again updated PR and Backlinks on the 28th of Feb 2008.This update is possibly conducted with a different set of algorithms.If this is official ,then it will be the second update for PR and backlinks for the year,considering it had updated PR and backlinks last January contrary to only 3 updates last year.As for me this time I was Unlucky,not only did I loose my backlinks my PR too decreased.If there is anyone who has any significant proof of this update kindly share it with us here.