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tedster - 7:18 pm on May 13, 2008 (gmt 0)
Udi Manber, Google's VP of Search [webmasterworld.com] tells us that "Last year we made over 450 improvements to the algorithm." So I assume that we are not looking at just one "update", but a continually shifting set of algo factors and weights.
How long is Google taking with this update!?