- Complex Systems Society aims to promote all aspects of complex systems science, as well as organizing the international scientific community of complex systems researchers.
- Complex Networks Collaboratory is the virtual collaboratory of four research groups that despite their far apart geographical locations pursue in close collaboration the same research agenda. The website is also intended as an information exchange points with links to conferences, tools and references useful for the network science community.
- Information is Beautiful, a website visualizing for readers quirky, interesting, and fun data sets from around the world. Published by London-based writer, designer, and author David McCandless.
- Monitoring and Evaluation News is a website that focuses on methods of monitoring and evaluating the progress and outcomes of development aid programs, big and small. But many of the methods discussed here are also relevant to the practice of evaluation when applied to policies and programs implemented by government and civil society organizations in richer countries, not just countries receiving international aid.
- Formation of Economic and Social Networks is a site by Leigh Tesfatsion on networks. Updated regularly.
- International Network for Social Network Analysis is the professional association for researchers interested in social network analysis.
- ACE Research Area - Formation and Evolution of Interaction Networks is a site by Leigh Tesfatsion on another form of networks, with related readings. Updated regularly.
- Center for Computational Analysis of Social and Organizational Systems (CASOS) is a university-wide centre drawing on a group of world class faculty, students and research and administrative staff in multiple departments at Carnegie Mellon. CASOS fosters multi-disciplinary research in which students and faculty work with students and faculty in other universities as well as scientists and practitioners in industry and government. CASOS research leads the way in examining network dynamics and in linking social networks to other types of networks such as knowledge networks. This work has led to the development of new statistical toolkits for the collection and analysis of network data (Ora and AutoMap). Additionally, a number of validated multi-agent network models in areas as diverse as network evolution, bio-terrorism, covert networks, and organizational adaptation have been developed and used to increase our understanding of real socio-technical systems.
- Coalition Theory Network is an association of eight high level scientific institutions, aimed at the advancement and the diffusion of research in the area of coalition formation.
- Economics of Networks is a site with a collection of information on economic issues of networks, such as the telephone and fax communications networks, the Internet, financial exchange and credit card networks, as well as on “virtual networks,” such as the virtual network of all Windows or all Mac computers.
- Social Dynamics Laboratory is a lab which studies the interplay between network topology and the dynamics of social interaction, using computational models, data from online networks, and laboratory experiments with human participants.
- Open Agent Based Modeling Consortium (OABMC) is a node in the CoMSES Network, providing a growing collection of tutorials and FAQs on agent-based modelling, a model library intended to provide a locus for authors and modellers to share their models, and forums for modelling-related discussions and job postings.
- Social Network Web Sites is an intriguing site which offers visitors access to social networks analytic technologies and software packages.
- Flowing Data is a quirky site with fascinating maps displaying every possible category of items.