Eğer CHIP Online bilgisayar kursuyla alakalı henüz tafsilatlı bilgiye iktiran etmek istiyorsanız tıklayın.In 2007, Google announced a campaign against paid links that alma PageRank.[27] On June 15, 2009, Google disclosed that they had taken measures to mitigate the effects of PageRank sculpting by use of the nofollow attribute on links. Matt… Read More