• INFORMS OR/MS Resource Collection (INFORMS, M. Trick, US)
• Resources (INFORMS, M. Trick, US)
• Other Network Resources and Newsgroups (INFORMS, US)
• Datenbank OR : Deutschsprachige Institute und Lehrstühle für Operations Research oder Unternehmensforschung (HU Berlin, DE)
• OR-Verweise : Eine Auswahl interessanter OR-Seiten (RU Dortmund, DE)

• Computer Society (IEEE Computer Society, US)
• CSNA (Classification Society of North America, US)
• EURO (The Association of European Operational Research Societies)
• GfKl (Gesellschaft für Klassifikation, DE)
• GOR (Gesellschaft für Operations Research, DE)
• IFCS   (International Federation of Classification Societies)
• IFORS (International Federation of Operational Research Societies)
• INFORMS (Institute for Operations Research and the Management Sciences, US)
• SVOR/ASRO (Schweizerische Vereinigung für Operations Research, CH)

• Bibliographies on the Web (H. Greenberg, US)
• Bibliographic Resources for DM and TCS (DIMACS, US)
• ResearchIndex (NEC Research Institute, US)
• Decision Sciences Web (Elsevier, NL)
• The Collection of Computer Science Bibliographies (A.-C. Achilles, DE)
• Search of Annual Comprehensive Index Bibliographic Database (INFORMS, US)
• Search of Zentralblatt für Mathematik / Mathematics Abstracts (European Mathematical Society, FIZ Karlsruhe and Springer Verlag, DE)
• Bibliographies of the Hypertext Bibliography Project  (D. M. Jones, US / U Karlsruhe, DE)
• The Classification Literature Automated Search Service (CSNA, US)

Searching the IOR Bibliographies

• GAMS : Guide to Available Mathematical Software (NIST, US)
• OTC : Optimization Technology Center (Argonne National Laboratory and NWU, US)
• RIOT : RIOT Remote Interactive Optimization Testbed (UCB, US)
• GIDEN : A Graphical Implementation Development Environment for Networks (NWU and Systems Research, US)
• ORMOS : Operations Research and Mathematical Optimization – Software (U Köln, DE)
• ORSEP : Operations Research Software Exchange Program (U Kaiserslautern, DE)
• SOR : Software Library for Operations Research (U Karlsruhe, DE)
• RILP : RIOT Interactive Linear Programming (UCB, US)
• The Simplex Method : A Method of solving Linear Programs (OTC, US)
• COmputational INfrastructure for Operations Research : Open source for the operations research community (COIN-OR Foundation, US)
• OpsResearch.com : Freeware Library of OR objects for Java ^tm (DRA Systems, US)
• The Stony Brook Algorithm Repository : Steven S. Skiena, SUNY Stony Brook, NY, US
• csourcesearch.net : C/C++ Source Code Search Engine

lp_solve

• lp_solve_4.0_win32.zip : Version 4.0 für Windows32 (TU Eindhoven)
• AMPL : A Modeling Language for Mathematical Programming | AMPL trial version (AMPL Optimization LLC, US)
• ILOG OPL Development Studio : Rapid Development and Deployment for Optimization Applications | OPL Development Studio trial version (ILOG, FR and US)