1 - Advertising & Marketing
2 - AC/Heating/Plumbing/Refrigeration/Sheet Metal/Ventilation
3 - Amusements & Gaming Management
3A - Appliances
4 - Architecture
5 - Arts
6 - Automotive
7 - Aviation & Aerospace
9 - Baking
10 - Banking
11 - Barbers
12 - Beauty & Hairdressing
14 - Boating
15 - Books & Book Trade
16 - Brewing, Distilling, Bottling and Beverage Markets
17 - Brick, Tile, Building Materials
19 - Building
19A - Building Management & Real Estate
19B - Building Products Retailing
20 - Business
20A - Business - Metro, State & Regional
21A - Camping & Campgrounds
25 - Cemetery & Monuments
26 - Ceramics
27 - Chain Stores
28 - Chemical & Chemical Process Industries
31 - Clothing & Furnishing Goods (Men's)
32 - Clothing & Furnishing Goods (Women's)
32B - Coin-Operated & Vending Machines
32C - Computers
33 - Confectionery
34 - Control & Instrumentation Systems
34A - Corporate Network Buying Opportunities
34B - Cosmetics
34C - Dairy Products (Milk, Ice Cream, Milk Products)
35A - Department & Specialty Stores
35B - Discount Marketing
35C - Display
35E - Diversified Farming & Farm Homes
35D - Draperies & Curtains
38 - Educational
38A - Educational, Adult Training, Motivation & Development
39 - Electrical
40 - Electronic Engineering
40A - Electronic Imaging
40B - Employment Opportunities & Recruitment
40C - Energy Application & Management
41 - Engineering & Construction
44 - Farm Implements (General)
44A - Farm Supplies
44C - Feed, Grain & Milling
45 - Fertilizer & Agricultural Chemicals
46 - Financial
47 - Fire Protection
48 - Fishing, Commercial
48A - Fitness Professional
48B - Floor Coverings/Installation
49 - Florists & Floriculture
49A - Fluid Power Systems
50 - Food - Processing & Distribution
51 - Fundraising/Philanthropy
52 - Funeral Directors
54 - Furniture & Upholstery
55 - Gas
57 - Giftware/Art Goods/Decorative Accessories/Greeting Cards
57A - Glass
59 - Golf
60 - Government (Local, State & Federal) and Public Works
60A - Graphic Design
61 - Grocery
61A - Groups & Networks
62 - Hardware & Housewares
63B - Home Furnishings
63C - Homeland Security & Response
64 - Horse & Rider Supplies, Apparel & Equipment
66 - Hotels, Motels, Clubs & Resorts
68 - Human Resources
69 - Industrial
69A - Industrial Automation
69B - Industrial Design
70 - Industrial Distribution
70A - Industrial Purchasing
70B - Industrial Purchasing Directories & Catalogs
70C - Infants, Children's & Teen Age Goods
71 - Institutions
72 - Insurance
73 - Interior Design / Furnishings / Space Planning
73B - International Trade
73C - Intimate Apparel
74 - Jewelry & Watchmaking
75 - Journalism & Publishing
77 - Landscape, Garden Supplies
78 - Laundry & Drycleaning
79 - Leather, Boots & Shoes
80 - Legal
81 - Lighting & Lighting Fixtures
81A - Linens & Domestics
82 - Logging, Forest Management/Product Manufacturing
83 - Luggage & Leather Goods
83A - Maintenance/Cleaning
83B - Manufacturing/Industries, Equip., Products & Systems
84 - Maritime, Marine, Shipbuilding, Repair & Operating
85 - Materials
85A - Materials Handling & Distribution
86 - Meats & Provisions
88 - Metal, Metalworking & Machinery
90 - Military & Naval (Active & Inactive Service)
93 - Mining (Coal, Metal & Non-Metallic)
95 - Motion, Talk, Sound, Commercial Pictures, Etc.
96 - Motor Trucks, & Accessories
97 - Motorcycle & Bicycle
97A - Moving & Storage
99 - Music & Music Trades
100 - Newsletters
101A - Nuclear Science & Engineering
102A - Nut Culture & Nut Trade
102B - Ocean Science & Engineering
103 - Office Equipment & Stationery
103A - Office Methods & Management
107A - Packaging (Users)
107 - Packaging Manufacturers (Paperboard/Flexible Packaging)
108 - Paint & Wallcoverings, Painting & Decorating
109 - Paper
110 - Parks, Public
111 - Petroleum & Oil
112 - Pets
113 - Photographic
113A - Physical Distribution
113B - Plant/Engineering, Maintenance, Repair & Operations
114 - Plastics & Composites
115A - Police, Law Enforcement & Penology
115B - Pollution Control (Air & Water)
115C - Ports
116 - Poultry & Poultry Products
117 - Power & Power Plants
117A - Power Transmission Components & Systems
118 - Printing & Printing Processes
119 - Produce (Fruits & Vegetables)
120 - Product Design Engineering
120A - Production Engineering
120B - Professional Association Management
121 - Public Transportation & Mass Transit
121A - Quality Assurance
122 - Radio, TV & Video
124 - Railroad
125 - Recreational Vehicles, Trailers & Accessories
125A - Reference
126 - Religious
126A - Rental & Leasing Equipment
127 - Restaurants & Food Service
128 - Robotics
129 - Roofing
130 - Rubber
131 - Safety, Accident Prevention
131A - Sales Management
132 - School Administration
132A - Science, Research & Development
132B - Security
133 - Seed & Nursery Trade
134 - Selling & Salesmanship
135 - Shopping Centers
137 - Sporting Goods
139 - Stone Products, etc.
140 - Sugar & Sugar Crops
140A - Swimming Pools
141 - Tea, Coffee, Spices
142 - Telecommunications Technology
143 - Textiles & Knit Goods
145 - Tobacco
147 - Toys, Hobbies & Novelties
148 - Transportation, Logistics & Distribution
149A - Travel, Business Conventions & Meetings
149B - Travel, Retail
154 - Waste Management
155 - Water Supply & Sewage Disposal
155A - Web Search Engines & Directories
156 - Welding
158 - Wire & Wire Products
159 - Woodworking
H1 - Allergy
H1 - Biotechnological Sciences
H2 - Anesthesiology
H2 - Dental
H3 - Biotechnology
H3 - Drugs, Pharmaceutics
H4 - Cardiology
H4 - Healthcare
H5 - Chiropractic
H5 - Hospital Administration
H6 - Dental
H6 - Medical & Surgical
H7 - Dermatology
H7 - Nursing & Health
H8 - Diabetes & Endocrinology
H8 - Ophthalmology, Optical & Optometrics
H9 - Emergency Medicine
H10 - Extended Healthcare
H11 - Gastroenterology & Proctology
H12 - General Surgery
H13 - Geriatrics & Gerontology
H14 - Healthcare Business Management
H15 - Hematology
H16 - Infectious Diseases
H17 - Internal Medicine
H18 - Laboratory, Pathology & Biomedical Sciences
H19 - Managed Healthcare
H20 - Medical Product Directories/Manufacturing/Distribution
H21 - Multi-Specialty & Primary Care
H22 - Nephrology
H23 - Neurosciences/Neurology
H24 - Nurse Practitioner & Physician Assistant
H25 - Nursing
H26 - Nutrition & Dietetics
H27 - Obstetrics & Gynecology
H28 - Oncology
H29 - Ophthalmology
H30 - Optometry & General Eye Care
H31 - Orthopedics & Orthopedic Surgery
H32 - Otorhinolaryngology
H33 - Pediatric Medicine
H34 - Pharmaceutics & Pharmacology
H35 - Physical, Occupational & Other Therapy/Rehabilitation
H36 - Podiatry
H37 - Psychiatry
H38 - Psychology & Counseling
H39 - Pulmonary Health
H40 - Radiology
H41 - Rheumatology
H42 - Speech Language Pathology & Audiology
H43 - Sports Medicine
H44 - Surgical Specialties
H45 - Urology
H46 - Veterinary
F1 - Advisory Publications/Crops, Chemicals, Livestock
F1A - Dairy & Dairy Breeds
F2 - Diversified Farming & Farm Home
F3 - Farm Education & Vocations
F5 - Farm Organizations & Cooperatives
F6 - Field Crops & Soil Management
F7 - Fruits, Nuts, Vegetables & Special Products
F9 - Livestock & Breed
F11 - Poultry