Nerval's Lobster writes: "Champagne corks must have popped at Google headquarters when the Federal Trade Commission announced it wouldn’t push antitrust action against the company. But Microsoft immediately took to the blogosphere to vent its displeasure. “The FTC’s overall resolution of this matter is weak and—frankly—unusual,” Dave Heiner, vice president and deputy general counsel for Microsoft, wrote in a Jan. 3 blog posting. “We are concerned that the FTC may not have obtained adequate relief even on the few subjects that Google has agreed to address.” Microsoft’s reasons for pursuing Google are obvious: the two companies compete in mobility, search, operating systems, and online advertising. Back in 2009, Wired published a long article on the battle between the giants, and how Microsoft pulled various legal levers to help scuttle an impending deal between Yahoo and Google. The intervening years, the rivalry’s only intensified."