American Academy of Child and Adolescent Psychiatry http://aacap.org/cs/forFamilies
This is a national organization for child and adolescent psychiatry that has a page of resources for families on topics like typical development as well as disorders such as autism and ADHD.
National Institute of Child Health and Development http://www.nichd.nih.gov/
This is a government agency and resource on children.
LD OnLine http://www.ldonline.org
This is an online resource of information on learning disorders and ADHD provided by a television station in Seattle WA.
CHADD- Children and Adults with Attention Deficit/Hyperactivity Disorder www.chadd.org
This is an informational website on ADHD provided by the CHADD organization which is partially funded by the center for disease control and prevention.
Learning Disabilities Association of America http://www.ldanatl.org
This is national non-profit organization concerning learning disorders and support for parents of children with learning disorders developed by parents of children with learning disorders
Arizona Office for Americans with Disabilities - Know the ADA http://know-the-ada.com/t3/guide-learning-disablities.html
This is a website in Arizona that is designed to help parents learn about disabilities and contains links to a number useful websites about different disabilities. This site also explains the Americans With Disabilities Act.