The Society for Industrial and Organizational Psychology deals with the scientific study of the workplace. Some of the main focuses are industrial-organizational psychology, talent management, coaching, assessment, employee selection, training, and work-life balance.

American Management Association (AMA) is centered on management training and professional development.This is a great professional association for HR professionals to join.

ATD is the world's largest association dedicated to the training and development of professionals. HR professionals can learn best practices in these two HR areas.

The Society for Human Resource Management’s site provides job listings and other resources for HR professionals.

This human resources association is centered on the HR area of compensation.