Jeff Barr is focused on furthering awareness among software developers of the opportunity to innovate and build businesses using Amazon Web Services. Launched in July 2002, Amazon Web Services exposes Amazon.com technology and product data that enables developers to build innovative and entrepreneurial applications on their own. Barr meets regularly with developers in the U.S. and internationally to introduce Amazon Web Services and to help them build businesses and applications with the program's services. He joined Amazon in August 2002 as a Senior Software Developer on the Associates team. Applications built using Amazon Web Services range from enhanced Associates sites that advertise products from the Amazon.com Web site to integrated solutions for retailers selling merchandise through Amazon.com. Developers make money by earning referral fees from their Associates sites or by charging users for the applications they build.