ALS (Amyotropic Lateral Sclerosis, or Lou Gehrig's Disease):

• ALS Association
• Neurology Channel
• Medicine Plus
• National Institute of Neurological Disorders

Arthritis:

• Arthritis Foundation
• Medicine Plus

Central Nervous System Disorders:

• National Institute of Neurological Disorders
• Neurology Channel

Multiple Sclerosis:

• National MS Society
• Neurology Channel
• Medicine Plus
• National Institute of Neurological Disorders

Muscular Dystrophy:

• Muscular Dystrophy Association
• Medicine Plus
• National Institute of Neurological Disorders

Parkinson's Disease:

• National Parkinson Foundation
• Neurology Channel
• Medicine Plus
• National Institute of Neurological Disorders

Spinal Cord Injuries:

• National Spinal Cord Injury Association
• Neurology Channel
• Medicine Plus
• National Institute of Neurological Disorders

Stroke:

• Neurology Channel
• Medicine Plus
• National Institute of Neurological Disorders