CHADD
CHADD is a national nonprofit with leading experts on ADHD.  The site contains a tremendous amount of useful and credible information on ADHD.
www.chadd.org

CHADD Northern California Chapter
chaddnorcal.org/ 

ADDA
Attention Deficit Disorder Association
www.add.org

LDA
Learning Disability Association of America
www.ldanatl.org

AAN
American Academy of Neurology
www.aan.com

AAP
American Academy of Pediatrics
www.aap.org

AACAP
American Academy of Child and Adolescent Psychiatry 
www.aacap.org

APA
American Psychological Association
 www.apa.org

American Psychiatric Association 
 www.psych.org

National Center for Gender Issues and ADHD
www.ncgiadd.org

The Attention Deficit Information Network, Inc.
www.addinfonetwork.com

U.S. Department of Education Office of Special
Education Programs
www.ed.gov/offices/OSERS/OSEP

International Dyslexia Association
www.interdys.org/

 Parents Helping Parents
www.php.com/

Support for Families
www.supportforfamilies.org/