Who gives a shit.
Look, I realize this is a hard fucking concept for most people, but I (1) can choose not to use Google, (2) don't pay Google for their services and (3) can easily, readily block Google from tracking me. If Google is ripping off their advertising customers by placing their own links on top then that's fraud, not an anti-trust violation.
I hate Google as much as the next guy. They are evil and can be used for evil (as Register user "skedastic" knows all too well). They are most likely ripping off their REAL paying customers (advertisers). They steal content from other providers (ie music videos on Youtube) and make money off of it via advertising. They have no problem buying up competitors - whether they are competing against a Google service or for advertising market share. I am fairly sure that if there is a type of evil in the world to commit then Google will.
That does NOT make them an antitrust, however. Neither does being the King of Internet Advertising. This is not the same world that IBM and AT&T thrived in. Google don't even exist on the same plane of reality. Trying to apply traditional anti-trust legislation against them is only going to result in a giant clusterfuck that benefits NO ONE and damages EVERYONE. I/you/we benefit from Google having one of the largest R&D divisions in the world - just as we all did from IBM and AT&T (until they used their position in the marketplace to stifle innovation). When they chose to break the law, they chose to in a way that had very real, very bad consequences on business and consumers alike. Until it is proven that Google are squashing competition, stifling innovation, damaging ecommerce (hahahahahahahahaha who gives a fuck, really) and putting the hurt on end-users (in a monopolistic way) then they're not guilty of a single god damned anti-trust violation.
Guilty of fraud? Most likely. Guilty of violating privacy law? Most likely. Guilty of a whole lot of other shit that is most likely illegal (or will be soon)? Most likely. Putting their own search results at the top of a search they're most likely being paid to put a sponsored link on is a dick move and illegal, but it's not anti-trust. Waving the anti-trust baton around willy nilly is irresponsible at best and extremely damaging to innovation at worst. The government encourages companies to be successful because it brings in taxes and revenue to the US; stock markets encourage companies to be successful because it makes investors richer; the consumer encourages companies to be successful because of the innovative products they release - TO A POINT. We arbitrarily decide when that line has been crossed, and then we try our best to take those companies down.
The fact that a bunch of competitors and a whole slew of self-interested/self-aggrandizing eggheads are looking for excuses to anti-trust the shit out of Google only betrays their desperation. Fuck Google in the ass, but do it right proper, by actually charging them for breaking laws instead of filing bullshit anti-trust charges against them. If the limp dicks who run the various governments of the world had actually manned up and said "Oi, don't invade our privacy, okay, or we'll charge you $10,000 for every infraction" and then "Make AdSense more transparent so we know you're not ripping people off" and then "No the DoubleClick merger IS NOT OKAY because you're big enough all ready, fuck off you twats" then Google would be a lot better off company and you wouldn't have a whole bunch of second rate wannabes finding every excuse possible to sue Google into oblivion.
As far as Google goes, the best thing they could possibly do to squelch any anti-trust rumblings would be to FIRE ERIC SCHMIDT AND UNDO EVERY POLICY HE'S EVERY ENACTED. Within reason, of course, but you get the point. That guy is toxic, and if Google and the world governments come to ahead via anti-trust, then he's going to go down in history as being the worst CEO ever. He won't even be able to donate his way into our hearts like Bill Gates, he'll be straight up labeled a corporate disaster. It won't matter because he's rich and scummy, but the fact that Sergei and Larry don't take more pride in their "baby" is something they'll have to live with.