USA TODAYSAN FRANCISCO — Yahoo Chief Operating Officer Henrique de Castro stepped down from the Internet company on Wednesday after disappointing advertising results. De Castro is leaving Yahoo, with millions…

PC MagazineWhen the Kindle Fire HDX debuted in September, Amazon launched its new “Mayday” tech support system with the promise of a human employee at your service within 15 seconds.…

CBC.caA deal to boost global trade has been approved by the World Trade Organization’s 159 member economies for the first time in nearly two decades, keeping alive the possibility that…

BBC NewsEarly on Sunday the spacecraft fired its main engine for more than 20 minutes, giving it the correct velocity to leave Earth’s orbit. It will now cruise for 680m…