How to increase PR for a network of websites?(如何提高整个站群的PR？)
I link back to a hub site and then link out of that hub site to the sites that need the boost.A hub is where a main site links to all the child sites, and the children all link back to the main site - the main site is the hub. E.g.
x
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H----x
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x
Where lines are links and the big H is the hub and the littles x are the child sites.
Be careful when interlinking sites on the same class-C IP address. The class-C is the first three groups of numbers. This is easily detected by G and an excessive interlinking penalty could result.
PR doesn't have the same value that it one had. I currently see plenty of low PR sites in G that are ranked much higher than high PR sites. A lot of people believe that PR is not as important as it one was, and a Google rep acknowledged this at a recent Search Engine Strategies Conference. Quality links from a lot of sources are much more important.
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