Microsoft is not happy after Google’s recent $3.1 billion bid for advertising network operator DoubleClick. Microsoft is so upset about the situation that they have called for a review of the deal. Brad Smith, Senior Vice President and General Counsel at Microsoft commented about the situation.“We think this merger deserves close scrutiny from regulatory authorities to ensure a competitive online advertising market.”Microsoft is not the only one that has complained, AT&T, AOL, and Yahoo, have also complained after Google came along with its massive all-cash deal. Yahoo and AOL had been in the running for DoubleClick along with Microsoft, while AT&T just seems to fear Google could use them and other broadband providers merely for information. AT&T Senior Executive Vice President for external affairs Jim Cicconi talked about their fears.“For many of these new Web services, it could be that the advertising-supported model is the predominant business mode. The danger here is that Google could be in a position to pick winners and losers.”According to the New York Times, Google’s CEO Eric Schmidt implied they were confident with the deal.“We’ve studied this closely, and their claims, as stated, are not true.”It would be easy to mimic Microsoft for its antitrust complaints, since they have been in antitrust fights in the United States and Europe for their business practices. The fact that AT&T is upset about the bid makes matters more interesting since they want to be an online player and compete with broadband providers like Comcast. They have no desire to adapt to utility status. Although Microsoft made the first noise about antitrust concerns, AT&T could be the company with the stronger case against the DoubleClick deal.