411.com.
Click on the link to "White Pages" to access a reverse telephone lookup directory.

Address Directory For The Politicians Of The World.
Created by Donald Vermithrax, this site has email addresses, phone numbers, FAX numbers, and snail-mail addresses for Monarchs, Presidents, Prime Ministers, Provincial Governors of 194 Countries, from Afghanistan to Zimbabwe.

All Area Codes.
Listed by number and by state/country. Includes U.S. and Canadian telephone area codes.

Anywho.
Search for people, businesses, or toll-free numbers. Includes a reverse telephone number lookup.

BigBook.
Free yellow pages directory that combines a comprehensive U.S. business database with nationwide, street-level maps. The database includes more than 11 million businesses and provides the company's name, an organization category, address, city, state, zip code, phone number, and street map.

Gethuman.
Ever been frustrated by the maze of automated voices you have to wait through in order to talk to a human being? This site has provided short cuts to navigating your way through some major company "help desks," such as Gateway and Dell.

Hard to Find 800 Numbers.
Search alphabetically by company name for customer service, billing, tech support, and operating hours for many hard to find companies.

National Contact Center.
A place to get answers to questions about the federal government. Includes E-mail addresses for the Bush Administration.

Switchboard.
Nationwide residential and business directory from Coordinate.com.

Telephone Directories on the Web.
An international index, by country, to online telephone, fax, business, and email directories.

The Ultimate Directory.
From InfoSpace, this site has white-page searching for phone numbers, email addresses, and a special option to search for your favorite celebrity. It also has extraordinary blue-page searching for federal, state, and city governments.

Whowhere.
Searches for phone numbers, company Web addresses, and e-mail addresses.