In the words of Matt Cutts,dior sac, "rel="nofollow" attribute is an easy way for a web site to tell search engines that the web site can’t or doesn’t want to vouch for a link." Before January 21st, NOFOLLOW was mainly used for blog comments. This helped blog owners cut down on comment spam. NOFOLLOW was also used in some situations to denote a paid link,gucci sacoche, but this is a whole other controversy that will have to be saved for a different article.
If you are not involved in the search engine optimization community, January 21st, 2007 probably held no significance for you. However, if you are a search engine marketer or SEO,sac chloe, you probably remember January 21st as the day that Wikipedia died. To the untrained eye, Wikipedia is exactly the same today as it was six months ago. But, once you dig below the surface and take a look, you can see one difference that has had an impact on the world of search engine.
Although NOFOLLOW has probably cut down on the amount of spam Wikipedia has to combat, but as many others have stated, Wikipedia could have chosen a different method for fighting spam that did not punish quality web sites which deserve to be recognized by Wikipedia.
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