Online optimization project: http://www-neos.mcs.anl.gov
Operation research: http://www.coin-or.org/index.html
Global optimization:http://www.cs.sandia.gov/opt/survey, http://www.mat.univie.ac.at/~neum/glopt.html
Continuous global optimization software: http://plato.asu.edu/gom.html
Ant colony optimization: http://iridia.ulb.ac.be/~mdorigo/ACO/
Particle swarm optimization: http://www.swarmintelligence.org/index.php