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i was not reffering to commercial results just regular results based from pagerank.
This is probably a good opportunity to mention that Google keeps the unpaid 'Search' side of its business 100% separate from the paid 'Advertising' side of its business.
For this reason, although I do work at Google, I'm not trained in the nuances of search related issues at all. Hey, advertising is enough to keep my busy way more than full time!
So, bottom line, I'm not able to answer this question.
Perhaps someone else on the forum can - or perhaps it may need to be answered in another forum on WebmasterWorld focusing on Google Search.
;)
AWA