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Which do exactly what? other than not much at all of course.
the ONLY time you should have any use for them is IF you are having issues with getting a site crawled other than that it's just something else to waste time on.
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Chris. ->> Links are advertising NOT optimising!! <<-
A foolish consistency is the hobgoblin of little minds
Thought for today:- I SEO the only industry where all the cowboys are Indians?
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