In 2007, Google introduced a campaign in opposition to compensated inbound links that transfer PageRank.[23] On June 15, 2009, Google disclosed that they had taken actions to mitigate the effects of PageRank sculpting by use from the nofollow attribute on hyperlinks. Matt Cutts, a very well-recognised program engineer at Google, https://stephenu650vfn6.wikienlightenment.com/user