Opinions expressed by Entrepreneur contributors are their own. Today, customers order most of what they need to their doorstep, from groceries to cosmetics to pet products. And they expect these ...

Opinions expressed by Entrepreneur contributors are their own. Amazon Fire Phone, Google Glass, New Coke and Nintendo’s Virtual Boy: What do all these products have in common? They didn’t sell.

Quantum computing is either a distant dream or an imminent reality depending on whom you ask. And while much of this year's Quantum Village at the Defcon security conference in Las Vegas is focused on ...