Dictionary of Occupational Titles
   Alphabetical index of occupational titles provided by the United States Department of Labor.
   http://www.wave.net/upg/immigration/dot_index.html

ERI Business Definitions Glossary
   Over 2,000 business terms used in compensation and benefits administration.
   http://www.eridlc.com/resources/index.cfm?fuseaction=resource.glossary

Standard Industrial Classification Index
   Index of industrial classification codes and corresponding descriptions.
   http://www.wave.net/upg/immigration/sic_index.html

Standard Industrial Classifications (SIC) Index
   Alphabetical index of Standard Industrial Classifications (SIC), as defined by the US Census Bureau.
   http://www.theodora.com/sic_index.html