General Health Issues:
KidsHealth: "Trainloads of information on infections, behavior & emotions, food & fitness, and growing up healthy, as well as cool games and animations!"

Bereavement Support:
Compassionate Friends: A national nonprofit, self-help support organization, which offers friendship and understanding to families who are grieving the death of a child of any age, from any cause.
Grief & Loss

Parent Helpers:
Death and Dying
Discipline and Behavior
Building Preschool and School Skills and Getting Ready for Kindergarten
Marital Problems & Divorce
Parents and Career
Social Development
The Facts for Families: Available in English, Español, Français

Resources in Spanish:
Mi Pediatra: Informacion relacionada con la salud de los ninos