Zappos.com director of development: Brent Cromley

Brent Cromley, director of development at e-tailer Zappos.com, speaks with CNET News.com's Dan Farber about building a reliable inventory management for a supply chain of more than 4 million products. He also discusses building a Web 2.0 style community for their loyal shoe shoppers and the company's move into cookware and electronics.