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

MedlinePlus: 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

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

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/

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/

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

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

NJ/PA Eosinophilic Support Group
Support Group for people dealing with Eosinophilic Esophagitis and Eosinophilic Gastrointestinal Disease in NJ, PA and DE. Provides information on the disorders, including diagnosis and treatment.
http://njpaeos.org/

HESresource.com
A resource aimed at providing information about idiopathic hypereosinophilic syndrome (HES), a group of rare disorders involving a certain type of white blood cell. By GlaxoSmithKline.
http://www.hesresource.com