As with all PageRank updates, site owners are reporting movements up and down as the full update takes effect. Some of the key PageRank measuring tools (e.g. SEOquake) are still not reporting consistent figures.

While PageRank isn't a definitive guide to Google's ranking algorithm, it is still viewed as one of the key indicators.

The toolbar update, which tends to occur every 3 to 4 months, is only Google sharing a snapshot of the dynamic PageRank which it uses in its algorithms. As matt points out:

"It's more accurate to think of it {PageRank- as a floating-point number. Certainly our internal PageRank computations have many more degrees of resolution than the 0-10 values shown in the toolbar."

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