Mayor Michael R. Bloomberg said although he has been approached by potential buyers, he will not sell his multibillion-dollar company. Read more..

By THOMAS J. LUECK and ANDREW ROSS SORKIN - The New York Times

The Internet auction giant said its profit was helped in part by a lower tax rate and strong sales at its online payments unit. Read more..

By MIGUEL HELFT - The New York Times

The T-Mobile Dash, a phone slim enough to slip into a vest pocket or evening purse, is powerful enough to put in a full day’s work. Read more..

By JOHN BIGGS - The New York Times

Wall Street saw the latest evidence as an encouraging sign that the Fed will keep interest rates unchanged for now. Read more..

By JEREMY W. PETERS - The New York Times

Microsoft is exploring hardware design now in part because of a new set of tools that will make it possible to test ideas quickly. Read more..

By JOHN MARKOFF - The New York Times

New entrepreneurial ad agencies are portraying themselves as more nimble and responsive than giant advertising companies. Read more..

By STUART ELLIOTT - The New York Times

Two executives of Samsung Electronics and a Hynix Semiconductor official were accused in a United States grand jury indictment of conspiring to fix prices for computer memory chips. Rha Young Bae, Samsung’s former head of worldwide sales and... Read more..

By BLOOMBERG NEWS - The New York Times

The Stiletto SL100, Sirius’s new portable satellite radio, offers Wi-Fi connectivity for listening to live Internet radio. Read more..

By J. D. BIERSDORFER - The New York Times

Sony’s new Altus portable stereo headphones have a frequency response usually found only on high-end, professional-quality headphones. Read more..

By STEPHEN C. MILLER - The New York Times

As technology advances, more creative and inexpensive content will be available via the Internet, vying for people’s attention. Read more..

By HAL R. VARIAN - The New York Times