An excellent source of quick definitions for terms, concepts, and important people in the field of sociology. (2006)
Key Concepts in Critical Social Theory
This ebook provides brief accounts of the central ideas behind the key concepts of critical social theory, which can be helpful for tackling unfamiliar primary texts. For example, if you're about to read Foucault's History of Sexuality, you may be interested in looking at the entry for biopower and body-power.
Cambridge Dictionary of Sociology
Examines both American and European traditions and approaches to sociology. Entries cover schools, theories, theorists and debates, with substantial articles (usually at least a few paragraphs long) on all key topics in the field. (2006)