Amazon.com, Inc. (Amazon.com) offers services to consumer customers, seller customers and developer customers. The Company serves its consumer customers through its retail Websites. It offers programs that enable seller customers to sell their products on the Company’s Websites and their own branded Websites. It serves developer customers through Amazon Web Services, which provides access to technology infrastructure that developers can use to enable virtually any type of business. In addition, the Company generates revenue through co-branded credit card agreements and other marketing and promotional services, such as online advertising. The Company’s operations are organized into two principal segments: North America and International. In August 2008, Amazon.com purchased Shelfari, a social network for book lovers. In December 2008, Amazon.com announced the completion of its acquisition of AbeBooks. In November 2009, the Company completed the acquisition of Zappos.com, Inc.