| Applied Probability Society | | A subdivision of the Institute for Operations Research and the Management Sciences (INFORMS) concerned with the application of probability theory to systems that involve random phenomena. |
| Imprecise Probabilities Project | | To help advance the theory and applications of imprecise probabilities, mainly by the dissemination of relevant information. |
| Math Surprises: An Example | | Buffon's Needle simulation and a surprising demonstration of Barbier's theorem about shapes of constant width |
| Parrondo Paradox | | Parrondo Paradox simulation and a demonstration of the ratchet effect. |
| Probabilistic Learning Activities Network | | Probability activities and simulations in the form of applets and spreadsheets. This site advocates a Question/Hypothesis/Experiment approach to learning probability. |
| The Applied Probability Trust | | The Applied Probability Trust is a non-profit foundation for study and research in the mathematical sciences. It publishes research journals, a student magazine and occasional special volumes. |
| The Probability Web | | A collection of pages maintained by Bob Dobrow to serve people with interests in probability theory and its applications. |
| Theory of Probability | | The introduction, formulas, software, algorithms, equations, problems, and calculations. | |
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