The stock drop coincided with a speech by the chairman of the S.E.C., Christopher Cox, who called for more stringent federal oversight of investment banks. Read more..

By MICHAEL M. GRYNBAUM - The New York Times

In The World Ends With You, Neku Sakuraba lives in a world where everyone seems to know what’s going on but he, and no one is inclined to explain anything. Read more..

By CHARLES HEROLD - The New York Times

David Pogue tests Apple’s Time Capsule, which backs up your computer automatically, constantly, completely and wirelessly. Read more..

By DAVID POGUE - The New York Times

Kyodo America’s robotic lawn mower, the LawnBott LB3500, can be programmed to mow the grass with a Bluetooth-equipped mobile phone. Read more..

By ERIC A. TAUB - The New York Times

To celebrate the longevity of the G-Shock, Casio has created a number of new watches, including the solar-powered, water-resistant MTG-1000, which tells time in 27 cities. Read more..

By DAMON DARLIN - The New York Times

The chairmen of Delta Air Lines and Northwest Airlines said a merger was essential to preserve jobs and service to small cities, and to compete with foreign-flag carriers. Read more..

By MATTHEW L. WALD - The New York Times

A dozen oil companies agreed to pay $423 million in cash plus clean-up costs to settle litigation over groundwater contamination from the gasoline additive, MTBE. Read more..

By JAD MOUAWAD - The New York Times

Sending business students to do field work at local firms is nothing new, but the trend has continued to gain popularity in recent years. Read more..

By BRENT BOWERS - The New York Times

Toyota, which said that it would likely face an annual profit drop, is finding its profit growth in new markets. Read more..

BY MARTIN FACKLER - The New York Times

Another sale would be the fourth change in control during the last decade for TV Guide, which has long been trying to forge a new identity as an entertainment magazine. Read more..

By RICHARD PÉREZ-PEÑA - The New York Times