NAICS and SIC codes help classify and measure industry activity. Knowing the code for your industry will help you find reports, articles, and other information on that industry in the library databases.
To look up codes by keyword, use the following sites.
Use this site to search for NAICS codes.
Note: It can be hard to find the right wording. For example, try using: cell phone OR mobile phone OR even wireless communications.
SIC Lookup
Use this U.S. Department of Labor site to search for an industry code by keyword, or look up a SIC code.