The company regularly tests its search system, what the home page looks like, overall site design as well as product pricing.

BBC: Amazon's old customers 'pay more'

Amazon spokeswoman Patty Smith said the price differences on certain DVDs are the result of tests that the company performs to re-evaluate various aspects of its Web site, such as the navigation system, what the home page looks like, overall site design and product pricing.

CNN: Testing reveals varied DVD prices on Amazon

Its innovative design concepts for high-end home theater audio are worth pursuing: The system is undeniably attractive, and the ease of use is a sure selling point.

FORBES: Sounding Out Home Theater

Kashkari's job is to design and implement a massive program to rid the financial system of bad home loans and get money flowing so that banks can start lending again.

NPR: Ex-Rocket Scientist To Oversee Financial Bailout

We can't assume that each home will have an IT expert to design and manage the policy, security and integrity of the system.

CNN: Home, sweet networked home