Epidemiology
Epidemiology for the uninitiated (4th edition)
Epidemiology website of the World Health Organization (WHO)
Supercourse (Epidemiology, the Internet and Global Health)
People’s Epidemiology Library (History of Epidemiologic Ideas, Methods, and Concepts)
Biostatistics
Statistics at Square One
Collection of Biostatistics Research Archive
MedPage Guide to Biostatistics
Epidemiology groups in related societies
European Dermato-Epidemiology Network (EDEN)
Epidemiology Group in the European Respiratory Society (ERS)