National Institute of Neurological Disorders and Stroke  - What is Parkinson's Disease?

The Parkinson's Institute  - Information on the disease, and suggestions for the newly diagnosed.

MEDLINE plus - Latest news, organizations, and coping information.

Parkinson Study Group - a self-described "non-profit group of physicians and other health care providers from medical centers in the United States and Canada, experienced in the care of Parkinson patients and dedicated to clinical research of Parkinson's Disease." Their aims are to "advance knowledge about the cause(s), disease progression and treatment of PD and related disorders".

About.com - Many, many other Parkinson's Disease links.

Remember, this is just a sampling of the information available on the internet.  We have surfed to each of the sites, but do not necessaraly endorse the statements or ideas presented within.  Use your best judgement when interpreting any information or claims made.