There are two ways to extend a business. Take inventory of what you're good at and extend out from your skills. Or determine what your customers need and work backward, even if it requires learning new skills. Kindle is an example of working backward.

Millions of people were inspired by the Apollo Program. I was five years old when I watched Apollo 11 unfold on television, and without any doubt it was a big contributor to my passions for science, engineering, and exploration.

You know you're not anonymous on our site. We're greeting you by name, showing you past purchases, to the degree that you can arrange to have transparency combined with an explanation of what the consumer benefit is.

I think frugality drives innovation, just like other constraints do. One of the only ways to get out of a tight box is to invent your way out.