Concise Encyclopedia of Sociology Wiley-Blackwell, 2011
Online. Provides succinct and up-to-date coverage of the fundamental topics.
Encyclopedia of Sociology Macmillan Reference USA, c2001
Online. Provides a great introduction to major concepts in the field of sociology. Fully searchable with statistical tables, graphics, and bibliographic references.
International Encyclopedia of Economic Sociology London ; New York : Routledge, 2006.
Hardcopy. Location: Gelman Stacks HM548 .I58 2006
Economic sociology deals with the multiple and complex relations between economy and society. This encyclopedia gives comprehensive and accessible coverage of the wide range of areas and subjects covered by the field.
Sage Encyclopedia of Social Science Research Methods Thousand Oaks, Calif. : Sage, 
Online. Covers inclusively both quantitative and qualitative research approaches; provides clear explanations of 1,000 methodologies.
Sage Handbook of Sociology Sage Publications, 2005
Hardcopy. Location: Gelman Reference HM586 .S24 2005 2nd Floor
An authoritative guide to theory and method, the key sub-disciplines and the primary debates in contemporary sociology.