Phone and E-mail Directories
AT&T Toll-free 800 Directory
AT&T AnyWho INFO Find People and Businesses in the U.S. and Canada
Lookup USA Contains American Yellow Pages and American Directory Assistance.
Switchboard A nationwide residential and business directory.
WhoWhere? E-mail Addresses
World Pages Phone books from 47 countries.

Industry Directories
Publishers' Catalogues Home Page Directory of publishers organized by country.
PubList - "Search our database of over 150,000 magazines, journals, newsletters, & other periodicals. Find FREE in-depth information on familiar and hard-to-find publications from around the world, representing thousands of topics."
Thomas Food Industry Register Free login required.
Thomas Register of American Manufacturers Free login required.

Zip Code Directories
US Postal Service Zip Code Directory Look up zip codes and official post office abbreviations.