http://www.noah.cuny.edu/neuro/muscler.html
This page provides links to information about muscular dystrophy: glossary of terms, causes (including a viral cause), diagnosis, and care and treatment options. NOAH is a site sponsored by several public agencies in the New York City area.

http://www.nhgri.nih.gov/DIR/LGDR/PARK/about_parks.html
The National Institutes of Health provide this page related to the history, diagnosis, and treatment options of parkinsonism. Interestingly, this condition seems to have been known to the earliest east Indian medicine (discussed in the Ayurveda), about 7,000 years ago.

http://www.ninds.nih.gov/patients/disorder/alzheimr/alzheimers.htm
The NIH has this brief information sheet about Alzheimer Disease. You can get some data on diagnosis, prognosis, and research here.

http://www.alzforum.org/members/research/news/index.html
This site has numerous short summaries of new research related to Alzheimer Disease. Most of the summaries seem fairly easy to understand but a few are somewhat technical.

http://brain.mgh.harvard.edu/Glioblastoma.htm
This page from the Massachusetts General Hospital discusses gliomas: origins, diagnosis, treatment. It discusses the various therapies such as chemotherapy, radiation and surgery and offers some advice to cancer patients.

http://deoxy.org/maoidiet.htm
Know somebody taking monoamine oxidase inhibitors (i.e. MAO inhibitors)? This page presents a review of the foods and drinks to avoid when somebody is on those medications.