- Illinois Valley Community College - A description of the autonomic nervous system, its characteristics and divisions.
- National Dysautonomia Research Foundation - Covers the anatomical structure of the system, transmission of autonomic stimuli and functions of the autonomic nervous system.
- Neuroscience for Kids - Autonomic Nervous System - An explanation of this system and what it does.
- STARS - Syncope Trust and Reflex Anoxic Seizures - Charitable organisation offering support and information on these autonomic disorders.
- The Autonomic Nervous System - Overview of the parasympathetic and sympathetic nervous systems by Dr S Bakewell.