Digg announced today that it has tweaked its policy on the nofollow attribute on external links.
"We've made a few changes to the way Digg links to external sites that may impact some folks in the SEO community,"
Digg is now adding rel="nofollow" to any external link that they aren't sure they can "vouch for." This means:
- External links from comments
- External links from user profiles
- External links from story pages "below a certain threshold of popularity"
Speaking of Digg and search, Digg also launched earlier this year
"We're using Apache SOLR/Lucene which helped us scale horizontally and solved many of our relevancy issues as well as enabling discovery of new content through facets," the company said earlier today. "Beyond site search, the rich set of features has allowed us build a platform that enables other features such as Related By Source and Related By Keywords."
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