Digg is, finally, doing something to combat the large amount of link spam from their website and has recently added nofollow on all external links.This include links from comments, story links that don’t meet a certain level of popularity and profile links.

We’ve added rel=”nofollow” to any external link that we’re not sure we can vouch for.

Is this bad news for SEO community ?

Of course that’s bad news. Many sites will lose some important backlinks since old stories links, links from comments were dofollow and many of that pages have a very high PageRank.

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