Parkinson's Disease Foundation (PDF), www.pdf.org
The Michael J. Fox Foundation for Parkinson's Research, www.michaeljfox.org
Parkinson's Action Network (PAN), www.parkinsonsaction.org
National Parkinson Foundation (NPF), www.parkinson.org
American Parkinson Disease Association (APDA), www.apdaparkinson.org
Parkinson's Resource Organization , www.parkinsonreource.org
Information on Deep Brain Stimulation at University of Kentucky Health Care:  www.ukhealthcare.uky.edu or www.ukneurology.com