ABACUS - A Branch-And-CUt System - ABACUS is a software system which provides a framework for the implementation of branch-and-bound algorithms using linear programming relaxations that can be complemented with the dynamic generation of cutting planes or columns (branch-and-cut, branch-and-price,branch-and-cut-and-price). www.informatik.uni-koeln.de/ls_juenger/projects/abacus.html
Global (and Local) Optimization - An archive of online information on global optimization. www.mat.univie.ac.at/~neum/glopt.html
LINDO Optimization Modeling Tools - Software for linear, integer and nonlinear optimization. LINDO supplies large scale solvers with links to Excel and database applications. www.lindo.com
Using n2fb.f and n2gb.f in C environment - Modular program for solving nonlinear least-square parameter estimation problems. Provides instructions how to port two important optimization Fortran codes to C. www.ece.rice.edu/~joejqian/optimization/optim.htm