Is Expert SEO Testing Valuable?
June 22, 2009 – 6:09 amMore than a year ago, Google changed how the PageRank flows so that the five links without nofollow would flow one point of PageRank each.
Matt explained why they never disclosed the change back then:
Why Google Engineers Once Pushed Nofollow PageRank Sculpting
Originally Google created rel=nofollow in what was claimed as an attempt to minimize the effects of blog comment spam on their search results. But the tag never decreased blog spam, it only decreased the ability of bloggers to influence search rankings by leaving back-scratching comments on each other’s blogs.
Matt Cutts quickly extended nofollow’s purpose to include use on paid text link ads as well. But given that Google AdWords sells links (and often to scammers) some people may have seen trade issues with forcing the new proprietary nofollow tag onto the web. Promoting PageRank sculpting gave Google a way to legitimize a tag which otherwise added no value to anyone except search companies. Read the rest of this entry »
Tags: seo




