J P Das Developmental Disabilities Centre
- Provides details of research, student training, publications, and clinical services for children and adults. University of Alberta, Canada.
- http://www.ualberta.ca/~jpdasddc/INDEX.html

Children's Seashore House
- Trains medical professionals in 12 disciplines related to developmental disabilities and mental retardation. (University of Pennsylvania School of Medicine, Philadelphia)
- http://www.chop.edu/consumer/jsp/division/service.jsp?id=26666

Eunice Kennedy Shriver Center
- Promotes understanding of neurological and behavioral development, with special emphasis on mental retardation and other developmental disabilities. (Waltham, Massachusetts)
- http://www.umassmed.edu/shriver/

UAB Civitan International Research Center
- Coordinates and conducts research related to human development, mental retardation, and developmental disabilities. Links for researchers and families about early child development, neurobiology research and developmental disabilities. (University of Ala
- http://www.circ.uab.edu/

John F. Kennedy Center for Research on Human Development
- Conducts and supports collaborative research, training, and information dissemination on behavioral, intellectual, and brain development. (Vanderbilt University at Nashville)
- http://www.vanderbilt.edu/kennedy/

Donald Beasley Institute
- Conducts research and education into the area of intellectual disability/mental retardation. (Dunedin, New Zealand)
- http://www.donaldbeasley.org.nz

Waisman Center
- Mental Retardation Research Center focuses on molecular and genetic sciences. (University of Wisconsin at Madison)
- http://www.waisman.wisc.edu/

International Association for the Scientific Study of Intellectual Disabilities (IASSID)
- An international and interdisciplinary scientific organization to promote worldwide research and exchange of information on intellectual, learning and related developmental disabilities (mental retardation)
- http://www.iassid.org