The document discusses Salesforce.com, the leading provider of customer relationship management (CRM) software delivered as a service. It provides information on Salesforce's history and success, how it overcome key challenges of competitors and expansion, and how features like the App Exchange allow third-party developers to create add-ons for its platform. The document also outlines some of the advantages and disadvantages of Salesforce's software-as-a-service model compared to traditional on-premise CRM software.