Great information from Seomoz on the effectiveness of shaping PR with “nofollow”.
The results:
“Despite what the search engine representatives say, nofollow is still an effective way for sculpting PageRank. If you have nofollow sculpting already installed, don’t remove it. If you don’t have it installed, implementing it probably won’t make a drastic change but we encourage you to test this when it is responsible to do so.”
More important than the final outcome is the context stated earlier in the post:
“There is overwhelming evidence that from a “ROI on time spent working” perspective, there is much more value in link building and creating content that is link-worthy than obsessing over search engine algorithm fluctuations like PageRank sculpting.”
PR sculpting is icing. Link building and link-worthy content, are the cake.
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