Google Directory - 
Google's human-edited directory, organizing the web into topics and categories. A joint effort of Google and the Open Directory Project.
http://directory.google.com/

Google Directory - 
Searchable directory based on the ODP, combined with their own PageRank algorithm within each category.
http://www.google.com/dirhp

eDirectory - 
Providing directory software to increase website traffic. Features organizing tools to run your directory efficiently.
http://www.edirectory.com/

AnyWho Directory Services - 
AT&T's AnyWho is a guide to residential, business, and government directory listings, including phone numbers and addresses.
http://www.anywho.com/

directory: West's Encyclopedia of American Law (Full Article ... - 
directory n. , pl. , -ries . A book containing an alphabetical or classified listing of names, addresses, and other data, such as telephone numbers,
http://www.answers.com/topic/directory

Directory - Wikipedia, the free encyclopedia - 
Directory (databases), a large collection of information primarily for reading ... French Directory, the government in revolutionary France from 1795 to 1799 ...
http://en.wikipedia.org/wiki/Directory

WhitePages.com - 
Find email addresses, phone numbers, and area and zip codes for people and businesses.
http://www.whitepages.com/

directory - definition of directory by the Free Online ... - 
Translations of directory. directory synonyms, directory antonyms. Information about directory in the free online English dictionary and ...
http://www.thefreedictionary.com/directory

YellowPages.com - 
Business phone number directory, searchable by city, state, business name, and type of business. Also includes international yellow pages.
http://www.yellowpages.com/

Verizon SuperPages.com - 
Business phone numbers and address finder for U.S. businesses. Also includes browsing by yellow pages categories.
http://www.superpages.com/