Gadgetwise blog; Avivo’s cellphone cases offer interchangeability with a frame, rail and jacket that fit together in a modular design and can be swapped for other parts. Read more..

By GREGORY SCHMIDT - The New York Times

Federal Reserve Bank of New York reports total consumer debt stood at $11.15 trillion in the second quarter, down 0.7 percent from the previous quarter. Read more..

By REUTERS - The New York Times

Regional court in Germany reverses antitrust regulator's approval for Liberty Global's 3.2 billion euro acquisition of KabelBW, throwing now-completed merger into doubt. Read more..

By REUTERS - The New York Times

Regulators and industry officials continue to debate merits of a possible merger between American Airlines and US Airways, following Justice Department filing to block it; antitrust officials say despite cost savings for carriers from consolidation, domestic airfares have increased much faster than inflation over last several years. Read more..

By JAD MOUAWAD and CHRISTOPHER DREW - The New York Times

New York Times Web site is off-line for about two hours in what company officials say is failure during regular maintenance of NYTimes.com and not result of a cyberattack. Read more..

By NOAM COHEN - The New York Times

Personal Tech Q&A on watching live TV on the go with mobile devices, spotting fraud sent via text messages, and finding additional characters on mobile device keyboards. Read more..

By J. D. BIERSDORFER - The New York Times