1. The Dirk Gently Omnibus
   Resource Type: Book
   Published: 2001
   
2. Human Resources Guide to Workplace Investigations
   Resource Type: Book
   Published: 2006
   A comprehensive "how-to" manual for planning and executing a proper and fair workplace investigation.
3. IntelligentSearch.ca
   Resource Type: Website
   Published: 2017
   A web portal featuring topics related to research and the Internet. The home page features a selection of recent and important articles. A search feature, subject index, and other research tools make it possible to find additional resources and information.
4. Interrogation
   A Complete Manual
   Resource Type: Book
   Published: 1987
   
5. The Muckraker's Manual
   How To Do Your Own Investigative Reporting
   Resource Type: Book
   Published: 1980
   The skills of investigative reporting described for non-journalists.
6. Sources Select Resources
   Reviews and information about print and online resources for journalists and researchers
   Resource Type: Website
   Published: 2009
   Reviews and information about print and online resources for journalists and researchers.
7. You Can Run, Not Hide, From Great Gumshoe Greene
   Resource Type: Article
   Profile of an independent sleuth specializing in missing persons.

Experts on Investigators in the Sources Directory

1. Improbable Research
2. International Criminal Police Organization (INTERPOL)
3. Sources Select Resources