This link has been bookmarked by 32 people . It was first bookmarked on 26 Sep 2006, by a77ila.
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In 2005 Google led a crusade against blog comment spam, creating
a nofollow attribute that can be applied at the individual link level. After
this was pushed through Google quickly changed the scope of the purpose of the
link nofollow to claim it was for any link that was sold or not under editorial
control.
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14 Jan 05
Adam FinkelsteinA very neat history of search engines.
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History of Search Engines & Web History
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