Gadgets are always popular choices as holiday presents. Linda Wertheimer talks to regular technology commentator Rich Jaroslovsky, of Bloomberg 暗黑爆料, about the gadgets he likes. Tops on the list are a Lytro camera, Zik wireless headphones, and a Saeco coffee machine.

Hewlett-Packard wiped that huge amount of money off its books last quarter, it says, because of problems with the finances of a British software company it bought last year.

The Pentagon's research agency, DARPA, played key roles in developing the Internet and GPS. Now it's investing money in high school hackerspaces, where students gather to come up with high-tech ideas 鈥� like a bicycle that generates electricity.

Approximately three-quarters of the world's population now have access to a mobile phone, and the majority of those subscriptions are in developing countries. But those phones don't usually have data plans. Now, Google and Facebook are offering free apps on these devices to get users hooked on social media.