Home page for NetLogo, a multi-agent programmable modeling environment. The platform environment is available to download and sample models are are available online. Many are simulations and can qualify as digital learning objects.
Paper by Reuven M. Lerner, Dept. of Learning Sciences, Northwestern University, Sharona T. Levy, Faculty of Education, University of Haifa and Uri Wilensky, Depts. of Learning Sciences and Computer Science, Center for Connected Learning and Computer-Based Modeling, Northwestern Institute on Complex Systems, Northwestern University.
Paper describes underlying principles of the Modeling Commons, a community for NetLogo modelers to share and collaborate.
Design principles for fostering public sharing and collaboration: Focus on artifacts; provide multiple entry points; be forgiving; maximize findability; provide flexible permissions; keep users informed.