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Librarians' Internet Index www.lii.org
The links are valid and to reliable sites which are chosen by librarians. For homework, it could be a great place to start regardless of the topic.

Melissa Data - Free Lookups www.melissadata.com/Lookups/
A wide variety of free directory and demographic information sorted by zip code, area code and more.

Smart Pages http://www.yellowpages.com/
An AT&T site that acts as an online yellow pages for businesses or persons. A reverse look up is also available.

Switchboard www.switchboard.com
White and yellow pages can searched by name, key word, or telephone number.

ReferenceUSA http://jeffersoncountylibrary.org/reference/databases.shtml#refusa
The database contains detailed information on more than 12 million U.S. businesses and over 102 million U.S. residents. Several search options are available. (A valid Jefferson County Library card number is required for access from outside the library.)

Thomas Register www.thomasnet.com
A searchable database for basic information on companies as well as products manufactured in the North America.

United States Postal Service (for ZIP codes) www.usps.com
ZIP+4 codes can be found by searching for all zip codes for a city, or for a specific address

Return to main reference links page.