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Well, on March 31, 2005, Google applied for a patent on its latest search algorithm. For those who have no fear of their brains exploding from buzzword overload do a search on “Patent Application 0050071741” to read the entire patent. The patent application describes 'a method for scoring a document comprising: identifying the document; obtaining one or more types of history (sic) data associated with the document; and generating a score for the document based on the one or more types of historical data.'