"Everyone is encouraged to join Twitter"

It's not surprising that Zappos's web strategy is focused on the consumer, too.

"The over-arching goal for me is to make sure that we're constantly evolving the site to keep up with trends, be ahead of them and make it more useful for our customers. We try to ensure that everything we do has a service aspect to it. And there's been this overrunning change that everything we do has to be in the interest of scalability.