The American Academy of Family Physicians offers information on adult and child health conditions and healthy living. Its website has topics on medicines, doctor visits, physical and mental health issues, parenting, and more.

The American Academy of Pediatrics (AAP) offers a variety of educational materials about parenting, general growth and development, immunizations, safety, disease prevention, and more. AAP guidelines for various conditions and links to other organizations are also available.

This website is sponsored by the Nemours Foundation. It has a wide range of information about children's health, from allergies and diseases to normal growth and development (birth to adolescence). This website offers separate areas for kids, teens, and parents, each providing age-appropriate information that the child or parent can understand. You can sign up to get weekly emails about your area of interest.

Zero to Three is a national nonprofit organization whose aim is to strengthen and support families and promote the healthy development of babies and toddlers. The organization provides information about growth and development and about health professional training. It also works to promote public awareness about the importance of giving children a healthy start and solid developmental foundation in the first three years of life.