Cheap Monty Hall
- Fully HTML-based simulator for the problem. All on one page.
- http://www.utstat.toronto.edu/david/MH.html

The Monty Hall Problem
- Simulation of the 3-door problem in Flash, along with a brief discussion.
- http://www.andrewgraham.co.uk/maths.html

Let's Make a Deal Strikes Again
- Dr Math answers a reader question and explains why the puzzle works the way it does.
- http://mathforum.org/dr.math/problems/monty.hall.html

A New Approach to the Monty Hall Problem
- Introduces the problem and tries to look at the problem in a new light.
- http://www.reenigne.org/maths/montyhall.html

Monty Hall : Explanations of Solution
- Gives 4 explanations of the solution to this problem.
- http://exploringdata.cqu.edu.au/montyexp.htm

Monty Hall
- Contains a introduction to the problem, a hint to the solution and the solution. The author attempts to "provide a reasonable and clear explanation of the answer".
- http://www.sover.net/~nichael/puzzles/monty/

Marilyn Vos Savant's Monty Hall Problem
- Simulator. Uses buttons as labels and controls. Counts tries and provides percentages. Can be Reset without page refresh.
- http://www.mindspring.com/~tluthman/vossavant.htm

Marilyn is Tricked by a Game Show Host
- Comments on Marilyn vos Savant response to the question about this problem.
- http://www.wiskit.com/marilyn.gameshow.html

The Infamous Monty Hall Problem
- Short introduction for beginners.
- http://www.comedia.com/hot/monty.html

Mathnet : The Car and the Goats
- Introduction to the problem and the controversy. As well as a simulator. Contains a link to the next page which explains the maths behind the problem.
- http://www.math.toronto.edu/mathnet/games/monty.html