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I'm trying to compete regarding keyword X. Currently, I'm on first page, 7-8th position. If, for each one of the urls listed in first page for such keyword, I search for related:[url], I get similar results for all of them, but mine. Mine shows inconsistent results, none of which related to the same topic as the other 9 in the top 10. Looking at them, the only hypothesis I am able to formulate is that, somehow, google is linking the url to its paid banners in big media. However, such banners go through an adserver and/or are declared as nofollow. Is there any obvious reason that could be causing this? I wonder if we are on page 1 even though we're considered pretty-much 'off-topic' regarding the keyword.