The System Dynamics Society is an international, nonprofit organization devoted to encouraging the development and use of systems thinking and system dynamics around the world.
Sports Business Simulations A corporation that develops online simulations of sports organizations for use in the classroom and as sports fantasy, with system dynamics as the foundation and using a programming language developed by Forio Business Simulations.
NetLogo (Multi agent simulation with an easy to use interface. This software is being used by children in schools, and can also simulate very complex systems.)
VisualBots - Freeware multi-agent simulator in Microsoft Excel - Visual Basic syntax
References
''Business Dynamics'', John Sterman, 2000 McGraw-Hill
''The Fifth Discipline'', Peter Senge, 1990 Doubleday
''Limits to Growth'', Donella H. Meadows et al, 1972 Universe Books
''Industrial Dynamics'', Jay Forrester 1961, Pegasus Communications