Amazon.com serves consumers, sellers, developers, enterprises, and content creators via its retail websites and focus on selection, price, and convenience. Co. also manufactures and sells electronic devices. Co. provides programs that enables seller to sell their products on its websites and their own websites and to fulfill orders through Co., and programs that allow authors, musicians, filmmakers, app developers, and others to publish and sell content. Co. serves developers and enterprises through its Amazon Web services segment, which provides access to technology infrastructure. In addition, Co. provides services, such as advertising services and co-branded credit card agreements.