This is an interesting read:

It’s about the current EU antitrust complaint filed against Google – not by Microsoft, as it happens. It covers whitelisting of people and Google using its search engine results to push its own services, which is anti-competitive. Specifically two examples are mentioned: on line map services (where MapQuest lost out in searches to Google Maps, even when the term MapQuest was specifically used) and price comparison sites. This tactic could obviously be used to kill off any competitors in any market Google is in, especially if they are then whitelisted, whereby the competitor is not to found in the search engine at all any more, unless through paid exposure using AdWords.

So this is about anit-competitiveness and transparency.

Why the Google antitrust complaint is not about Microsoft • The Register.