- Wikipedia article on Rev. Thomas Bayes
- Biography of Rev. T. Bayes
- 21 references on Bayes
- Probability theory as extended logic
- 250th anniversary of Bayes at U. Edinburgh with video lecture on how to gamble according to Bayes

- Simple Bayes Theorem Calculator by Michael Birnbaum
- Bayes Theorem Calculator by John Pezzulo: handles up to 5 Hypotheses and 5 Outcomes
- Bayesian Nomogram Calculator for Medical Decisions by Alan Schwartz
- Vasser Stat pages: Conditional Probability and Bayes Theorem
- Stat Trek pages: Bayes Rule Calculator

Experiment on Decision Making-Choose between gambles and perhaps win money.

- Statistical calculations
- UCLA statistics
- Rice Virtual Lab in Statistics
- Martindale's Calculators On-Line (>9,350 calculators of all types!)
- SISA = Simple Interactive Statistical Analysis

- European Association for Decision Making (EADM)
- Society for Judgment and Decision Making
- Society for Medical Decision Making

- Academic Sites
- INFORMS Decision Analysis Society
- Decision Support Systems (U.S. Naval Postgraduate School)
- Stanford Knowledge Systems Laboratory
- Decision Systems Laboratory, at the University of Pittsburgh
- GeNle: Decision Modeling Environment for Bayesian Networks and influence diagrams.
- Max Planck Institute, Center for Adaptive Behavior and Cognition, Berlin