Regulators are Watching Google Over Antitrust Concerns: “When it comes to government scrutiny, the company’s executives challenge the premise that Google is a monopoly, even as the company’s share of the search market inexorably rises, arguing that Google is still a minor player in the overall advertising market, which totals $800 billion a year…“They are not just on the radar screen. They are the at the center of it,” said Tim Wu, a professor at Columbia University and the author of a forthcoming book on technology monopolies, “The Master Switch: The Rise and Fall of Information Empires.” “If you are in the federal government and are interested in antitrust, you are looking at Google.”