Good lectures on PD, medications, etc.
 

I came across lectures by Professor Mal Horne of the Florey Institute in Australia. Each is quite long (about an hour), but I found them to be excellent round-ups of PD knowledge.

Finding the cause of PD

Medications in PD

Deep Brain Stimulation and Other Advanced Therapies

Non-Motor Problems

Treatment of Complications

Helping Yourself in PD

I hope you enjoy them as much as I did, and find them useful.

Dan