QWEST DEX
online white, yellow, and toll-free directories

Bigfoot
e-mail and white pages directory

Infobel
information and services for over 184 countries

InfoSpace
Contains internet yellow pages and white pages (i.e., directory), government links, business guide, city guide, international marketplace and links to "fun stuff".

National Address Server
Given a valid U.S. postal address, this server attempts to rewrite the address in the proper format along with the ZIP+4 code. If it is successful, you can retrieve a Postscript or a GIF file of the address for printing with a barcode! You can also view a street map of the address from 2 different Internet map sites (MapBlast and MapQuest).

Switchboard
people and business directory

SuperPages
Verizon Information Services has put the best aspects of BigYellow.com, BigBook.com, and SuperPages.com into a single location and focuses its efforts on continually enhancing the consumer experience.