The challenge isn't replacing Bill. That's already happened. Ballmer's big issues now: growth, Google, and those pesky Apple ads.

Cupertino (CA) - Apple has posted the update 10.5.4 for its Mac OS X Leopard operating system. The company promises that the update delivers security, reliability and performance enhancements, as well as the code to support the upcoming MobileMe online service that is set to debut on July 11.

Verizon Wireless may not challenge Apple's dominance of digital music any time soon, but its new DRM-free music initiative could help boost its mobile data business and broaden the market beyond iTunes.

Before you drop hundreds or thousands of dollars on the wrong flat-panel HDTV, read our comprehensive breakdown of everything you need to know. Our advice might just help you save some money.

Do you have lots of dusty photo albums with pages full of old photos? Thanks to the many free photo-sharing Web sites currently available, those are a thing of the past. Instead of carrying your photos around when you want to share them, you can now easily share them from your computer.