American Association of Clinical Endocrinologists
Information on endocrinology disorders for members and the public. Also included is professional information for endocrinologists, including clinical practice guidelines.

American Society for Reproductive Medicine (ASRM)
Contains ordering information for patient education booklets, meeting information, membership information, frequently asked questions.

American Society of Hypertension
Information about the society, meetings, instructions to authors for American Journal of Hypertension.

American Thyroid Association
Official homepage contains information about the association and links to related sites.

Endocrine Society
With 8,500 members from 72 countries, The Endocrine Society is the world's largest and most active organization devoted to the research, study and clinical practice of endocrinology. Together, these scientists, educators, clinicians, practicing MDs, nurses and students who make up the organization's membership represent all basic, applied and clinical interests in endocrinology.

Scientific Advisory team
The mission of PTNA is to support, pursue, encourage, promote, and, where possible, fund research on pituitary tumors in a sustained and full-time effort to find a cure for pituitary diseases. The site includes infromation on diagnosis of tumors, referral information, calendar of events, support groups, Network newsletter, and bulletin board service. A Spanish version is available.

Society for the Study of Reproduction
Contains a link to tables of contents and a searchable index of abstracts to Biology of Reproduction, membership information, meeting information, and links to other sites that link to SSRs site.

Thyroid Foundation of Canada
Provides up-to-date information for thyroid patients and their families. It also provides links to other health and thyroid related organizations and Internet resources. The foundation aims to promote awareness of thyroid disease, and to raise funds for research. English and French versions are available.