NCBDDD aims to find the cause of and prevent birth defects and developmental disabilities. This agency works to help people of all ages with disabilities live to the fullest. The website has information on many topics, including genetics, autism, ADHD, fetal alcohol spectrum disorders, diabetes and pregnancy, blood disorders, and hearing loss.

The March of Dimes tries to improve the health of babies by preventing birth defects, premature birth, and early death. March of Dimes supports research, community services, education, and advocacy to save babies' lives. The organization's website has information on premature birth, birth defects, birth defects testing, pregnancy, and prenatal care.

The National Dissemination Center for Children with Disabilities (NICHCY) is the national information and referral center that provides information on disabilities and disability-related issues for families and professionals. The focus is on children and youth, birth to age 22.

The National Down Syndrome Congress (NDSC) is a national advocacy organization and a major source of information, support, and empowerment for people with Down syndrome and their families. NDSC's goal is to create a climate in which all people will recognize and embrace the value and dignity of those with Down syndrome. NDSC can provide information on the nearest Down syndrome clinic in your area.

The National Down Syndrome Society (NDSS) wants to help people with Down syndrome enhance their quality of life, realize their life aspirations, and become valued members of the community. NDSS advocates for research, policies, and education to help people with Down Syndrome. The Web site has information about health care, school and community life, the transition to adulthood, behavior management, family issues, friendships, and more.