http://www.ninds.nih.gov/disorders/stroke/knowstroke.htm
This document also available in Spanish
National Institute of Neurological Disorders and Stroke, National Institutes of Health
The Know Stroke site was developed by the National Institute of Neurological Disorders and Stroke (NINDS) and offers a wide range of materials about stroke prevention, treatment, and rehabilitation. Resources include educational videos, and campaign and community resources.