Advertising/PR : Reed Elsevier, Inc. - Standard Directory of Advertising Agencies
Associations : Columbia Books, Inc.
Bank Head Offices : Thomson Financial Publishing - Polk North American Financial Institutions Directory
Bank Holding Companies : Thomson Financial Publishing - Polk North American Financial Institutions Directory
Bank Savings Institutions : Thomson Financial Publishing - Polk North American Financial Institutions Directory
Broadcast Media Organizations : The Gale Group - Gale Directory of Publications & Broadcast Media
Colleges/Universities - Undergraduate : Peterson's, a Division of Thomson Learning - Peterson's Guide to 4 Year Colleges
Colleges/Universities - Graduate : Peterson's, a Division of Thomson Learning - Peterson's Guide to Graduate Schools
Consultants : The Gale Group - Consultants & Consulting Organizations Directory
Credit Unions : Thomson Financial Publishing - Polk North American Financial Institutions Directory
Distributors : Harris InfoSource International
Early Childhood Centers : Quality Education Data
Education/K-12 : Quality Education Data
Executive Search Firms : Custom Databanks, Inc.
Financial Services : Reed Elsevier, Inc. - Directory of Corporate Affiliations
Food & Beverage : Grey House Publishing, Inc.
Group Medical Practices & Surgicenters : SK&A Information Services, Inc.
HMOs/PPOs : SK&A Information Services, Inc.
Home Health Care : SK&A Information Services, Inc.
Hospital Management (Integrated) : SK&A Information Services, Inc.
Hospitals : SK&A Information Services, Inc.
ISP/Internet Service Providers : Harte-Hanks Market Intelligence Inc.
IT/Information Technology : Harte-Hanks Market Intelligence Inc.
Information Industry : The Gale Group - Information Industry Directory
Insurance : Reed Elsevier, Inc. - Directory of Corporate Affiliations
Investment Managers : Nelson Information, Inc. - Nelson's Directory of Investment Managers
Manufacturing : Manufacturer's News, Inc., Harris InfoSource International
Mortgage Bankers & Brokers : Thomson Financial Publishing
Museums : Reed Elsevier, Inc. - The Official Museum Directory
Non-Profit Organizations : GuideStar, Inc.
Nursing Homes : SK&A Information Services, Inc.
Oil & Gas : ChemWeek
Performing Arts : Grey House Publishing, Inc. - Performing Arts Directory
Publications : The Gale Group - Gale Directory of Publications & Broadcast Media
Publishers : The Gale Group - Publishers Directory
Real Estate : Reed Elsevier, Inc. - Directory of Corporate Affiliations
Research Centers - Private : The Gale Group - Research Centers Directory
Research Centers - US Government : The Gale Group - Government Research Centers Directory
Research Services : Grey House Publishing, Inc.
Restaurants : Chain Store Guide - Chain Restaurant Operators Directory
Retail/Wholesale : Chain Store Guide
Sports : Sportsguide, Inc.
Technology : OneSource Information Services, Inc.
Telephone/Wireless : PBI Media, LLC - Phillips Telephone Industry Directory & Phillips Wireless Industry Directory
Utilities/Electric : Utilities Data Institute, a Division of the McGraw Hill Companies - Directory of Electrical Power Producers
Value Added Resellers : Chain Store Guide
Venture Capitalists : Custom Databanks, Inc., Grey House Publishing, Inc., Reed Elsevier, Inc. - The Corporate Finance Sourcebook