Wikipedia recently decided to add nofollow to its all external links. As the news spreads, this should reduce Wikipedia spamming immensely. But it will pose disadvantage to all those trusted authority sites, as their links too would be made nofollow.

It is good to see Wikipedia taking measures to cut spam, however this step would not prevent internet marketers who would still try to spam Wikipedia for links that would get them valuable traffic. Matt Cutts of Google commented that he does not expect this change to affect Google’s ranking very much.

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