eMedicine: Eosinophilia
- Article by Daniel R Lucey, MD, explores the various causes and disorders associated with high numbers of eosinophils in the blood.
- http://www.emedicine.com/med/topic685.htm

MD Anderson: Clinical Trials for Idiopathic HES
- Offers treatment options for Idiopathic Hypereosinophilic Syndrome (HES). Contact information provided.
- http://www.mdanderson.org/diseases/hes/

American Partnership for Eosinophilic Disorders
- Group sharing information and resources about eosinophilic esophagitis, eosinophilic gastritis, hypereosinophilic syndrome, Churg Strauss syndrome, and chronic eosinophilic leukemia.
- http://www.apfed.org/

Yahoo Groups : Eosinophilia Myalgia Syndrome
- Information for those wishing to learn more about issues relating to EMS. Links for web sites pertaining to medical data, the history of the EMS epidemic and support.
- http://health.groups.yahoo.com/group/EosinophiliaMyalgiaInformation/

Eosinophilia-Myalgia
- Advocacy, information, and support for those with Eosinophilia-Myalgia (EMS).
- http://www.swiftsite.com/eosinophilia-myalgia/

Acute Pulmonary Eosinophilia: Loeffler's Syndrome
- Find a definition of this disorder, its causes, incidence and risk factors.
- http://www.nlm.nih.gov/medlineplus/ency/article/000105.htm

NetDoctor
- Facts about eosinophilia including what it is, how and when it occurs, symptoms, diagnosis and treatment.
- http://www.netdoctor.co.uk/diseases/facts/eosinophilia.htm

Eosinophilia Myalgia Syndrome Support Site
- Information and support site for people who ingested L-Trytophan in the 1980's and are suffering from EMS.
- http://www.nemsn.org/