Reuters - Federal prosecutors in New York have closed an investigation into the fatal prescription drug overdose of actor Heath Ledger without bringing charges, People magazine reported on its Web site on Wednesday.

AP - When Taiwan's Asustek Computer Inc. brought out the Eee PC last year, it created a whole new category of tiny, cheap laptops. Despite its success, the computer had one confounding element: Its keyboard was really small — good for kids, maybe, but not for adults.

Reuters - Microsoft Corp plans to buy back as much as $20 billion of its stock to boost its flagging share price, Bloomberg News quoted a top-rated software analyst as saying.

Reuters - Borrowing one of nature's best designs, U.S. scientists have built an eye-shaped camera using standard sensor materials and say it could improve the performance of digital cameras and enhance imaging of the human body.

AP - Authorities have cracked what is believed to be the largest federal hacking and identity theft case ever, involving the theft and sale of more than 41 million credit and debit card numbers.