SIC Codes (search) or Browse the SIC Manual
NAICS Codes or Browse the 2022 Reference Files
Academy of Management Online
American Council on International Personnel
Center for Human Resources Management, National Academy of Public Administration
Center for Leadership & Change Management, Wharton School
The Conference Board
Employee Benefit Research Institute
Human Resource Planning Society
Institute of Industrial Relations
International Association for Human Resource Information Management
Leader to Leader Institute
Rutger's Business Research Guides
Society for Human Resource Management
Society for Industrial and Organizational Psychology