Wall Street Journal on CD-Rom for full text searches of the leading business newspaper. Laser Disclosure has detailed reports from the SEC about companies traded on stock exchanges. National Trade Data Bank has information from the US government to help companies export, a good source of statistics and information on foreign markets. National Economic, Social, and Environmental Data Bank publishes useful statistics. This huge full text database can be very helpful if you know how to search it.
Training is highly recommended.
The MIT Libraries have many more CD-Rom databases and access to numerous remote databases. The Librarian can recommend those most appropriate for your project. To use FirstSearch, at the Athena prompt, type add library and then tfirst. To exit, type bye. To get in type add library and then mitosis.