WSU Address & Telephone Maintenance Service
https://www.it.wsu.edu/AIS/ATMS/cgi-bin/atms.cgi

American Directory Assistance
http://adp.infousa.com/cgi-bin/abicgi/abicgi.pl?bas_session={bas_session}&bas_vendor={bas_vendor}&bas_type=ADA&bas_page=1&bas_action=ADA
Accurate white page listings for businesses and people; yellow pages also available

AnyWho Directory Service
http://www.anywho.com/
Toll free numbers, fax numbers, email, home pages, reverse telephone listings and more for more than 90 million businesses and people

Bigfoot
http://www.bigfoot.com/
A good starting point for people searches, either white pages or email addresses

Internet 800 Directory
http://inter800.com/
Directory of toll free telephone numbers

Law Firm directory from Martindale
http://www.martindale.com/

Dex
http://www.dexonline.com/
Search the yellow & white pages for U.S. phone numbers, plus community information for U.S. cities.

Telephone Directories on the Web
http://www.infobel.com/teldir/teldir.asp?page=/eng/
Index of online phone books: yellow pages, white pages, business directories, email addresses, fax listings from around the world

Thomas Register of American Manufacturers
http://www.thomasregister.com/
This comprehensive resource for manufacturers in the U.S. and Canada lists more than 170,000 businesses, with indexing by industrial products and services, and by brand and trade names.

Verizon Superpages
http://superpages.com
A nationwide interactive yellow pages & a business web site directory

Yahoo People Search
http://www.yahoo.com/search/people/phone.htm

ZIP Code Lookup and Address Information
http://www.usps.gov/ncsc/