American Cancer Society: Do We Know What Causes Pituitary Tumors?
   Article that explains the cause of tumors, how they develop, risk factors, and prevention.
   http://www.cancer.org/docroot/cri/content/cri_2_4_2x_do_we_know_what_causes_pituitary_tumors_61.asp?sitearea=cri

Medline Plus: Pituitary Disorders
   Contains an overview, symptoms, treatment, coping, genetics, and clinical trials.
   http://www.nlm.nih.gov/medlineplus/pituitarydisorders.html

NINDS Pituitary Tumors Information Page
   Information sheet compiled by the U.S. National Institute of Neurological Disorders and Stroke which discusses definitions, prognosis, treatment and research issues.
   http://www.ninds.nih.gov/disorders/pituitary_tumors/pituitary_tumors.htm

Neuroendocrine & Pituitary Information Links
   Resources for patients. From Massachusetts General Hospital's Neuroendocrine Clinical Center.
   http://pituitary.mgh.harvard.edu/LnksPit.htm

OHSU Pituitary Unit
   Comprehensive treatment center specializing in pituitary tumors and diseases including cushing's, acromegaly, and prolactinomas.
   http://www.ohsupituitary.com/

Pit Pat - The Pituitary Foundation
   Provides information and support to those suffering from pituitary disorders, their relatives, friends and carers. Includes newsletters, resources, GP fact file, general information for patients and a glossary.
   http://www.pituitary.org.uk/

Pituitary Disorders Education & Support
   Their goal is to improve health care through communication, public awareness, and patient education. Lists treatments and conditions, newsletters, and patient stories.
   http://pituitarydisorder.net/

Pituitary Network Association
   Non-profit organization for patients with pituitary tumors and disorders, their families, and health care providers who treat them.
   http://www.pituitary.org/

The Hormone Foundation: Pituitary Disorders
   Provides an overview on secretory and non-secretory tumors, treatment options, lifestyle issues, and prevention; as well as other pituitary-related resources.
   http://www.hormone.org/public/pituitary.cfm

The Pituitary Center at Vanderbilt University Medical Center
   Aims to provide comprehensive, multi-disciplinary care to patients with all types of hypothalamic and pituitary diseases.
   http://www.pituitarycenter.com/

UCLA Pituitary Tumor and Neuroendocrine Program
   UCLA's program page provides information regarding the clinic, its procedures, research, patient services, links, and a support group.
   http://www.pituitary.ucla.edu/index.html