Sources say the FTC is preparing to challenge Google's (GOOG) proposed $750M acquisition of...

|By:, SA News Editor

Sources say the FTC is preparing to challenge Google's (GOOG) proposed $750M acquisition of mobile-ad provider AdMob on antitrust grounds. The FTC reportedly sent letters to AdMob's competitors asking them to testify about the potential impact of the purchase, and has assembled an internal team of litigators if it decides to block the deal. (yesterday)