ILOG, Inc. - Software component provider of constraint programming based solving engines for resource optimization, business rule engines, etc. Many products and services: CPLEX Suite, Parallel CPLEX, ILOG Solver, AIMMS, AMPL, GAMS, MPL, OPL Studio, more.
Symbain Developer Network: Technical Library
- EPOC C++, Java, PC-side connectivity and OPL system documentation: all the docs from the SDKs readable on-line.
Twiddlebit Software - Twiddlebit Software: OPL development tools and OPXs (OPP, OPPDBG, GPRINTER.OPX)