Rank algorithm update from google weeded out a lot of good or bad websites, in the hope of offering it’s search users better results, according to their official blog, this change impacts 11.8% organic search results, in another word, google thinks about 12% of it’s search results are really bad and need to manipulated. The update was initiated more than a year ago, and recently I see some of my ranks were lowered considerably, the good thing is that those keywords promoted by content rich links are not affected, some of the keywords even ranked better than before, it’s almost a sure thing that plain link building loses all it’s attraction, at least in the eye of google.