Various Operations Research Links Software and Code Maximal Software - maker of MPL CPLEX - Math Programming Software available on simplex.rose-hulman.edu NEOS Server - can solve optimization problems over the web Common Optimization INterface for Operations Research - open sourse site containing various optimization routines MCF - a C implementation of a network simplex solver. Available free of charge for academic use.  Matthew's GA library - A C++ Library of Genetic Algorithm Components Netlib Server - plenty of optimization codes OpsResearch.com - Java applets for OR