A computer system that supports and analyzes Internet and/or electronic commerce data includes at least one user station transmitting a user request, and at least one Internet server, connectable to the user station, and providing the user station access to external data sources. The computer system also includes at least one data collection and analysis system. The data collection and analysis system includes at least one analysis module performing statistical and analytical analysis of the Internet and/or electronic commerce data for use by a user in performing one or more business decisions, and at least one Internet and/or electronic commerce data warehouse which is responsively connected to the analysis module and separated from external systems. The data warehouse receives the Internet and/or electronic commerce data, and provides access to the Internet and/or electronic commerce data by the user. The data collection and analysis system also includes at least one data mapping module which searches, collects and transforms the Internet and/or electronic commerce data, and transmits the same to the data warehouse for storage.