Google and the Jagger Update
Google seems to have finished rolling out the first pahase of the so called Jagger update. PR has been reworked for many sites, as well as the number of backlinks. We are noticing interesting results where low PR pages with no keyword in the text or code are ranking very high. A wild speculation is that Google may be implementing ontology driven similarity algorithms to rank a site, particularly using Natural Language Processing and Fuzzy Logic.This is the way it works: a site sell "prime aged steaks". There are many pages that describe how cattle is raised and fed, with a lot of content with keywords such as "high quality beef", "premium meat cuts", "grain fed cattle" etc. An ontological similarity algorithm can read, interpret these pages, understand how such keywords relate to "prime aged steaks" and rank the site high for such key term. Add a few internal and external incoming links with anchor text "prime aged steaks" and it is feasible that the page will rank very well. The race is on to create true artificial intelligence to weed out spammy and software generated sites.
We need to see if this is the case with Google. Recent purchases of companies specializing in these aspects of text recognition point to some work in progress. On another note, MSN sear regained its old PR9.

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