Association for Adults with Developmental Disabilities
www.aaddpa.org
American Association on Intellectual and Developmental Disabilities
www.aaidd.org
The Arc of the United States
www.thearc.org
Jewish Family and Children’s Service of Greater Philadelphia
www.jfcsphilly.org
National Association of Councils on Developmental Disabilities
www.nacdd.org
National Association for Down Syndrome
www.nads.org
National Down Syndrome Society
www.ndss.org