Yahoo CEO Marissa Mayer is casting aside a cost-cutting specialist and bringing in software industry veteran Ken Goldman to be chief financial officer as the Internet company's management orchestrates a potentially expensive turnaround attempt.

Barnes & Noble Inc. says it will launch a video service this fall that lets users buy and watch movies and TV shows on their mobile devices and televisions.

Netflix Inc.'s stock slid nearly 6 percent Monday amid the latest round of investor concerns about the video subscription service's ability to make money and retain customers as it grapples with higher licensing costs and tougher completion.

Online retailer Amazon.com has tried to become all things to all consumers, but in California, it is about to take on a role it has fought against for years: tax collector.

Apple is holding an event in San Francisco during which it is announcing a new iPhone, capable of faster data speeds and sporting a taller screen.

Toys R Us said Monday that it plans to launch its own tablet computer aimed at children called Tabeo on Oct. 21, a low-priced entry into the increasingly crowded tablet business.

Amazon says buyers of its new Kindle Fire HD tablet will get the option to turn off the advertisements that appear on its standby screen for $15.

Amazon.com Inc. unveiled four new Kindle Fire models on Thursday, including ones with larger screens, as the online retailer steps up competition with Apple Inc. ahead of the holiday shopping season.

Think of it as the opening act at a concert: Nokia, Motorola and Amazon are expected to unveil new mobile devices this week before attention turns to a new iPhone and possibly a smaller iPad from Apple.

Amazon says it has signed a deal with Epix to license movies from Paramount, MGM and Lionsgate for its Prime Instant Video online streaming service.