The EFMI advances international co-operation and dissemination of information in Medical Informatics on a European basis.
http://www.helmholtz-muenchen.de/ibmi/efmi/

ANSI accredited SDO comprised of healthcare subject matter experts and information scientists collaborating to create standards for the exchange, management and integration of electronic healthcare information.
http://www.hl7.org/

Scientifically validated terminology and infrastructure enabling clinicians, researchers and patients to share health care knowledge.
http://www.snomed.org/