Basic Indexing Techniques
http://www.bwa.org/articles/basic_indexing_techniques.htm

Lathrop, Lori M.
Boulder Writers Alliance
1997

Abstract:

If you're like most technical writers, you have had little (if any) training in creating indexes for the documents you produce. Even technical writers who graduate from Technical Communication degree programs receive little or no training in writing indexes. Consequently, most technical writers learn indexing 'by the seat of their pants ' and, unfortunately, many of the indexes they produce fall short of readers' needs.