American creator of the do-it-yourself Web sites Expedia.com and Zillow.com.

Barton graduated from Stanford University in 1989 with a degree in industrial design. In 1991 he joined Microsoft, Inc. (Microsoft Corporation), where he served as a product manager for MS-DOS and, later, the Windows operating system. While working on a Microsoft travel-guide project, Barton was inspired to provide consumers with direct access to flight information rather than leave them dependent on airlines and travel agencies, which effectively monopolized the travel-booking business. Microsoft launched Barton's idea as Expedia.com in 1994. It was spun off as a public company in 1999, and under Barton's guidance Expedia became one of the most popular—and financially successful—travel-booking Web sites. He remained the firm's president and CEO until 2003. Three years later Barton and Lloyd Frink, a former Expedia executive, created Zillow.com, a self-service real estate Web site that looked to duplicate the success of Expedia. Zillow was instantly popular, due in large part to a feature called the Zestimate, which provided users with an estimated value for any of the tens of millions of homes in the site's database.