areas: methods: scales

• A frequently cited work
  
  Bearden, William O. and Richard G. Netemeyer (1999), Handbook of Marketing Scales: Multi-Item Measures for Marketing and Consumer Behavior Research, Thousand Oaks, CA: Sage Publications ISBN 076191000X [Publisher's Site].
    
• A very complete reference of scales used in marketing is

  Bruner II, Gordon C., Karen James, and Paul J. Hensel (2001),  Marketing Scales Handbook: A Compilation of Multi-Item Measures V.III, Chicago: AMA [AMA Bookstore] [Table of Contents].

• The online Web compendium of public-domain research instruments. These are focused mostly on social psychology:
  
  http://www.hs.ttu.edu/research/reifman/qic.htm