- arXiv.org e-Print archive - The Los Alamos National Lab maintains a collections of e-prints dealing with nonlinear phenomena and others.
- Centre for Systems Science - Focus is on computing science, microelectronics, system design, artificial intelligence, and robotics. Includes a list of staff and research partner associations. Located at Fraiser University, British Columbia, Canada.
- Ilya Prigogine Center for Studies in Statistical Mechanics & Complex Systems - The Homepage of Ilya Prigogine Center at The University of Texas at Austin, with links to faculty and staff, e-prints, and tutorials in chaos physics and other topics
- Institute for Systems Science - Located at the University of Linz, Austria. Teaching and research resources.
- International Federation for Systems Research - A non-profit, scientific and educational agency, constituted of member organizations from various countries. The overall purpose of the Federation is to advance cybernetic and systems research and systems applications and to serve the international systems community.
- ISSS: International Society for the Systems Sciences Homepage -
- JASS Journal - Journal of Applied Systems Studies - Methodologies and Applications for Systems Approaches.
- Max-Planck-Institute for the Physics of Complex Systems - Dresden (Saxonia, Germany)
- Meta-Knowledge Engineering & Management Research Server - A portal of ENEA (Italian Agency for New Technologies, Energy and the Environment) including white papers, publications, presentations and links.
- System Dynamics Society - An international nonprofit organization devoted to encouraging the development and use of systems thinking and system dynamics around the world.