Attention Deficit Hyperactivity Disorder

Addison's/Adrenal Disease
National Adrenal Diseases Foundation

ALS
ALS Association

Aphasia and Stroke
Adler Aphasia Center
American Heart Association
American Stroke Foundation
Aphasia Hope Foundation
Internet Stroke Center
National Aphasia Association
National Stroke Association
Stroke Survivor
The Stroke Network

Approaches

Apraxia
The Childhood Apraxia of Speech Association 

Auditory Processing Disorders
National Coalition on Auditory Processing Disorders

Autism Spectrum Disorders

Cancer
American Cancer Society
CancerCare
Hewlett House
International Association of Laryngectomees
Oral Cancer Foundation
Support for People with Oral and Head and Neck Cancer

Dementia

Developmental Delays

Dysphagia

Huntington's Disease
Huntington's Disease Society of America

Learning Disabilities
Learning Disabilities Association of America (LDA)

Multiple Sclerosis

Muscular Dystrophy
Muscular Dystrophy Association

Myasthenia Gravis
Myasthenia Gravis Foundation of America

Myositis
The Myositis Association

Parkinson Disease
American Parkinson Disease Association

Passy-Muir Speaking Valves
www.passy-muir.com

Professional Organizations

Professional Voice Care
The Voice Foundation

Spinal Cord Injury
National Spinal Cord Injury Association

Syndromes
www.nas.com/downsyn A site created to help families realize the full potential of individuals with Down's Syndrome 

Traumatic Brain Injury
Brain Injury Association
Brain Injury Recovery Network
The Coma Waiting Page
Head Injury Information Network
The TBI Chatroom

Voice Disorders
American Acadamy of Otolaryngology - Head and Neck Surgery
ENT On-Line
National Spasmodic Dysphonia Association, Inc NIDCD: National Institute on Deafness and Other Communication Disorders