American Management Association: This membership-based management development and training organization provides seminars, conferences, and special events for the more than 700,000 managers and executives who are members worldwide.

American Marketing Association (AMA) MarketingPower: The American Marketing Association is the professional organization for marketing practitioners, managers, and executives. Founded in 1937, the association today has 45,000 members in 100 countries. The Web site provides free information and also features extensive resources for members only, including a reference library and job posting center.

American Society for Training and Development (ASTD): The ASTD is a membership association representing professionals in workplace learning and performance fields. ASTD conducts and reports on research, provides education, and serves as an information clearinghouse for its members.

Toastmasters International: The goal of Toastmasters is to help people build their communication and leadership skills through public speaking and by organizing and conducting meetings. Toastmasters International has clubs in cities throughout the United States (and the world). Look in your local phone book to find one near you.