American Sickle Cell Anemia Association - Provides a wide range of services to those individuals and families with either Sickle Cell trait or variants of the disease itself.
Sickle Cell Society - Provides information, counselling, and caring for those with Sickle Cell disorders and their families.
Thalassaemia & Sickle Cell Unit (TASC) - Leicester, U.K.-based research organisation providing educational opportunities, consultancy, and links to support and information services for the conditions of Sickle Cell Anaemia and Thalassemia.