Social tagging enables librarians to partner with users to provide enhanced subject access. This paper quantifies and compares LC subject headings from each of 31 different subject divisions with user tags from Amazon.com and LibraryThing assigned to the same titles. The intersection and integration of these schemas is described and evaluated.
Lawson, Karen G., "Mining Social Tagging Data for Enhanced Subject Access for Readers and Researchers" (2009). Collections and Technical Services Publications and Papers. 47.