- CDC - Chronic Fatigue Syndrome - Information from the US Center for Disease Control concerning chronic fatigue syndrome (CFS), its diagnosis and treatment.
- Chronic Fatigue Syndrome - Latest news, research updates, articles database, treatment and book reviews, forums and more at The Environmental Illness Resource
- Help With ME - Products to aid people with Myalgic Encephalomyelitis (Chronic Fatigue Syndrome).
- Wisconsin Chronic Fatigue Syndrome Association - A clearinghouse for CFS information within Wisconsin. Assists patients and families and promotes research on the cause, cure and prevention of chronic fatigue syndrome.