These days I have noticed several changes in the rankings of Google (the SERP) of different sites, my clients and me. The sites concerned are of diverse topics and server reside in different continents between them.
Yet the charts of all the sites I've noticed some general changes, more or less pronounced depending on the case.
So I'm started to inform and found that others have noted such change, even with changes of 50-70 positions forward or backward.
This forums webmaster and seo some English also revealed the significant differences between the results provided by Google's data centers in England and those in America, a symptom of an update of current algorithms. (See: http://www.webmasterworld.com/forum30/31688-11-30.htm )
I do not know if they actually tell you this could be a "major update" or just the aftershocks caused by slight changes.
Or may be just the first step un'update in stages, as the update that has taken the name of Jagger and that Google has divided into 3 parts, from September to November 2005.
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