- Parkinson’s Disease Clinical Trials — PDtrials.org
- Family Caregiver Alliance
- Information on Human Neurological Diseases / Parkinson's
- Healthology - Health and medical information
- We Move - Education & Awareness for Movement Disorders
- Parkinson's Disease Foundation
- National Parkinson Foundation, Inc.
- The Michael J. Fox Foundation for Parkinson's Research
- Parkinson's Institute
- American Parkinson's Disease Association
- Parkinson's Action Network
- The Parkinson Alliance
- Team Parkinson
Parkinson's & General Neuroscience Research
- Center for Molecular & Behavioral Neuroscience
- University of Minnesota Dept. of Neurosurgery
- The National Institute of Neurological Disorders and Stroke
- The Glaxo Neurological Centre
- Functional and Stereotactic Neurosurgery