WestJet Airlines agreed on Monday to pay 15.5 million Canadian dollars to settle accusations of spying on an internal Web site of its bigger rival. Read more..

By IAN AUSTEN - The New York Times

When it came to repelling a hostile takeover bid from Mittal Steel, Arcelor left no stone unturned as it searched for a poison-pill partner. Read more..

By HEATHER TIMMONS and ANDREW E. KRAMER - The New York Times

I'm on the road about 200 days a year, trying to contend with airline seats and hotel rooms that were not built with professional basketball players in mind. Read more..

By BILL WALTON - The New York Times

The industry is spending tens of millions of dollars on marketing campaigns to court Hispanic customers. Read more..

By MATT RICHTEL and KEN BELSON - The New York Times

American chip maker Advanced Micro Devices said that it planned to spend $2.5 billion over the next three years to expand production in Dresden, Germany. Read more..

By KEVIN J. O'BRIEN - The New York Times

With the cost of mobile phone calls already dropping sharply, Virgin Mobile USA plans to announce a way that people can talk for no money at all. Read more..

By MATT RICHTEL - The New York Times

Orlen, the Polish oil refining company, will pay $1.49 billion to Yukos International for its 53.7 percent stake in the Mazeikiu Nafta refinery. Read more..

By JUDY DEMPSEY - The New York Times

The AMC cable television network is considering a series that would explore how Madison Avenue remakes itself to meet the changing needs of clients. Read more..

By STUART ELLIOTT - The New York Times

Americans are increasingly identifying global warming as a serious problem, and a few companies are taking special steps to curb carbon emissions. Read more..

By JAD MOUAWAD - The New York Times

It's one of the wonders of modern airline travel that the premium trans-Atlantic markets, and especially the New York-London routes, are thriving. Read more..

By JOE SHARKEY - The New York Times