http://bit.ly/p3Y2lc A couple of years ago the more popular bookmark sites changed all their links to nofollow which had a huge impact on bookmark rankings. Sites like Technorati and Digg, plus a few others, were able to dominate the first pages of SERPS in Google as a result of their high PR status.
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Alternative Techniques For Applying Social Bookmarking In Your Online Business
maandag 5 september 2011
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