Google sparked a frenzy of activity in the SEO blogosphere this month when they announced the combining of data from Google Personalized Search, Google Personalized Homepage, and Google Search History into a single personalized Google search experience.

For example when you login into your Google account such as GMail, Google will server modified search results based on the search engines listings that you've click on in the past and other Google data sources such and Google Bookmarks.

This has made many SEO's worry as would become very difficult to say "My site is number 1 in Google for a specific key phrase as everyone would be presented with slightly different search results.

Google has been presenting personalised results since around June 2005 when this program was first introduced and depending on the data centre you happen to connect then your search results could vary anyway.

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