All e-books can be accessed via SOLO or directly through publisher collections:
Covers traditional topics in sociology, such as theory, stratification, political sociology, and the sociology of education and social movements, as well as emerging areas such as immigration studies, the sociology of space and time, and the sociology of intimate relations and religion.
An attempt to map all the fields encompassed within the social and behavioral sciences.
Covers terminology, concepts, and thinkers in the field of sociology, as well as from the related fields of psychology, economics, anthropology, philosophy, and political science.
Oxford medical journals and some other services can be accessed using the links.
The Cochrane Handbook for Systematic Reviews of Interventions is the official document that describes in detail the process of preparing and maintaining Cochrane systematic reviews on the effects of healthcare interventions.