IMACS, The International Association for Mathematics and Computers in Simulation (est. 1956).
http://www.cs.rutgers.edu/imacs/
MODELLING AND SIMULATION SOCIETY OF AUSTRALIA AND NEW ZEALAND INC.
http://cres.anu.edu.au/~tony/mssanz/
MODSIM 1999 MEETING
http://www.mngt.waikato.ac.nz/depts/econ/modsim99.html
http://www.mngt.waikato.ac.nz/modsim99
Society of Computational Economics
June 1999 Conference
http://wuecon.wustl.edu/sce/
http://www.iasted.com
GARP site
http://www.garp.com
financial market risk analysis.