US National Library of Medicine
Medline Plus: Strokes
This patient education module will help you understand the causes of strokes and how you can prevent them.
Other
Everyday Health: Stroke (Cerebrovascular Accident)
This site gives a complete overview of information regarding strokes. Tells what they are, causes of strokes, types of strokes, symptoms of strokes, how to treat strokes, and ways to decrease your risk of having one.