The ReferenceUSA database contains detailed information on more than 14 million US businesses and 210 million US residents. This database has lots of practical business applications. Use ReferenceUSA to do market research. You can search for companies by industry type, geographic area or estimated sales revenue. Use ReferenceUSA for competitive analysis. You can do a radius search and look up the number of similar businesses in a geographic area.
The attached file contains five short excercises. Working through them will help you learn the features of this database.
Click here to open the ReferenceUSA database.