Business Contacts
Bigbook Yellow Pages— 11 million business listings, search engine.
Thomas Register — Thomas Publishing Company. Brand Names, companies, products and services, Online suppliers.
Trade Specialists — Current listing of trade specialties with name, address, phone, fax numbers.

Email Addresses
Bigfoot — Bigfoot International Inc. Advanced directory search and yellow pages.
Usenet Addresses Service — MIT via Usenet. Directory of directories, over four million addresses can be found.