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-- Google News Archive
---- Major, Sub-Major, and Minor Google Updates
Gus_R - 7:48 pm on Sep 9, 2003 (gmt 0)Thread source:: http://www.webmasterworld.com/google_archive/16798.htm
Not sure about to name it major and minor cycles, but there are two regular periods between deep crawls: one and three weeks. At least in my logs from July.
High pr pages visited daily.
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