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A pal tells me about this:
"Your page rank / activity determines who often you get spidered
PR4 + sites every 72 hours upwards page rank gets updated every couple of weeks (that is visible) though they are supposed to be on a 'rolling update'
Big updates (like last couple of weeks) may affect it "
Is it so?
I have enough pages with pr4 but I don't see any particular update for the targeted keywords, only once a month.
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