This organization is dedicated to helping Americans make lasting, healthy lifestyle changes. Its simple guidelines include walking an additional 2,000 steps each day and decreasing caloric intake by 100 calories. This Web site provides simple, inspiring information about personal, group, and community activities.

HealthierUS.gov provides information on fitness, diet, prevention, and making healthy choices.

Shape Up America! is a national program to promote healthy weight and increased physical activity in America. It was founded by former U.S. Surgeon General Dr. C. Everett Koop. Shape Up America! encourages small lifestyle changes that improve health.

The Women's Sports Foundation is a charitable educational organization dedicated to increasing the participation of girls and women in sports and fitness and creating an educated public that supports gender equity in sports. The foundation's Web site is a reliable source of information about many fitness activities and sports and is useful to both men and women. It includes some interactive tools that help you find an activity suited to your style and personal preferences.