The worldwide economy may be faltering, but PC sales are in growth mode, according to numbers released Tuesday Apple’s growth was particularly strong.

The new Wii MotionPlus is essentially an upgrade to the motion control mechanism of the Nintendo Wii, and will work with a new generation of games.

A new service says it will pay for your new iPhone if you hand over your old one. But there are better deals to be had elsewhere, thanks to unusually strong demand for the used phones.

Bill Miller, the portfolio manager at Legg Mason whose funds hold a large stake in Yahoo, said that he would vote its shares in favor of electing Yahoo’s current board of directors.

South African mobile phone group MTN and India’s Reliance Communications called off talks aimed at creating a top-10 global telecoms group, saying they could not reach a deal.

The U.S. Defense Information Systems Agency has been reaching out to a wide range of companies to learn about their IT approaches, including the use of cloud computing.

Even though its second-quarter results disappointed Wall Street, Google insisted it is doing well.

Quarterly net income soared 29 percent at the online brokerage firm TD Ameritrade Holding because of growth in the number of trades handled and in asset-based revenue.

Google and Microsoft issued quarterly results on Thursday that disappointed investors.

The change to its editing philosophy would a layer of checkers to approve changes, eliminating some of the spontaneity that has made the site, at times, an informal source of news.

In a series of blog posts, Google has been explaining how its search engine works. It has a lot of technology that is meant to understand what users and Web pages actually mean.

What’s the most popular phone to surf the Internet with? Hint: It’s not the iPhone or the BlackBerry.

Advanced Micro Devices said Thursday that its chief executive, Hector Ruiz, was stepping down, to be replaced immediately by Dirk Meyer, the president and chief operating officer.

The company’s profits rose for the quarter based on strong PC sales in developing markets and rising demand from corporate customers.

I.B.M. reported a higher quarterly profit, beating expectations and buoyed by higher sales in the economically troubled United States and abroad because of growth in services, hardware and software.

The search giant gave an uncharacteristic disappointment to investors on Thursday, failing to meet at least some of Wall Street’s expectations for its second-quarter performance.

The European Commission said that it had added three new charges against Intel, and warned that it might order Intel to change its behavior under threat of large fines that could total 10 percent of its global revenue.

More than 600 Wikipedia contributors, administrators and fans gathered in Alexandria, Egypt, for their annual gathering to marvel at what they have accomplished, fret over what has gone wrong and plan for the future.

In a letter to shareholders, Yahoo said Carl Icahn’s agenda presents a “significant risk” to the value of Yahoo stock, and that it would only sell itself to Microsoft under the right terms.

CarbonRally.com offers a few dozen ways that individuals — or teams — can save energy.