This is a classic "made for regulators" set of pages. The title lets regulators know that it's for them, but the content has to explain Google's business as simply and positively as possible. You'll also notice that when you click through each of the pages, almost every criticism that could be lobbed at Google by a 3rd party is countered in some way.
Also note that the page came about mid-2011, around the same time when Microsoft was beating their "Google is a monopoly" drum.
Google: "15% of the searches we see everyday we've never seen before."
The linked page does come from Google's "Facts about Google and Competition", but the section "About Search" appears to be interesting for broader reasons.
This is a response to http://www.fairsearch.org/ which was created by a coalition of Google's competitors to try to convince governments to regulate Google.
Also note that the page came about mid-2011, around the same time when Microsoft was beating their "Google is a monopoly" drum.
http://web.archive.org/web/20110826063413/http://www.google....