Performance Improvement Stages, Steps and Tools
- Interactive site documenting a complete performance improvement process with root cause analysis as the core component, originally developed for medical care, but applicable in many other fields.
- http://www.prime2.org/sst/

Root Cause Analysis - Free Training and Tools
- Root cause analysis information, covering topics such as purpose, definitions, processes, tools, and risk significance. Features articles, a blog, resource links, forum, and a wiki.
- http://www.bill-wilson.net/root-cause-analysis

Noordwijk Risk Initiative Foundation
- Dedicated to sharing knowledge in the field of risk management. Provides information on investigation and analysis tools such as Change Control Cause Analysis and the Management Oversight and Risk Tree.
- http://nri.eu.com

National Patient Safety Agency
- Gateway to on-line training programme provided by the National Patient Safety Agency of the UK National Health Service.
- http://www.npsa.nhs.uk/rca/

ReliabilityWeb
- Compendium of reliability and analysis resources. Features online seminars, training event schedules, Root Cause IQ quiz, "Ask an Expert", and a vendor directory.
- http://www.reliabilityweb.com/fa/root_cause_analysis.htm

Investigation Process Research Roundtable and Library
- Research material on the investigation process. Critical of root cause analysis as generally practiced. Offers online papers, reports, and reviews.
- http://www.iprr.org/

Root Cause Live
- Community site for users and providers of performance improvement, failure analysis, and incident investigation services. Non-proprietary, non-industry-specific. Active online discussion forum.
- http://www.rootcauselive.com