Providing temporary use of a web-based software application for use in the field of real estate for data and document management and analysis, for real estate information and customer information tracking and analytics, for contract management, for listings and transaction management, for search and data syndication, for search, and for map-based data display; Application service provider featuring application programming interface (API) software for use in the field of real estate for data and document management and analysis, for real estate information and customer information tracking and analytics, for contract management, for listings and transaction management, for search and data syndication, for search, and for map-based data display