California Attorney General Opens Antitrust Investigation of Google

California has opened its own antitrust probe into Google, intensifying the pressure on the search giant already in the middle of investigations by the Justice Department and a host of other states, according to three people with knowledge of the inquiry. The move by California's attorney general comes as Google has come under increasing scrutiny from both Congress and foreign regulators for its market conduct and acquisitions that have turned it into the world's top search engine and the most profitable online advertising company.