In accordance with best practice in Social Simulation, we [1] publish models and other software under open source [2] licences, using standard online repositories, especially CoMSES Net [3]'s Computational Modelling Library [4], GitHub [5] and GitLab [6].
Many of the NetLogo extensions are available through the Extensions Manager (Extensions... from the Tools menu in the NetLogo app), or are in the process of being approved for inclusion.
Links:
[1] https://www.hutton.ac.uk/research/departments/information-and-computational-sciences/social-simulation
[2] https://opensource.org/licenses
[3] https://www.comses.net/
[4] https://www.comses.net/codebases/
[5] https://github.com/
[6] https://about.gitlab.com/
[7] https://www.comses.net/codebases/8824e9f0-d579-48ff-bdeb-65f972810577/releases/1.0.0/
[8] https://www.comses.net/codebases/8a87dbd3-315a-4234-a585-13aedb2f80f3/releases/1.1.0/
[9] https://www.comses.net/codebases/4961/releases/1.0.0/
[10] https://github.com/garypolhill/FEARLUS-SPOMM
[11] https://doi.org/10.5281/zenodo.5718763
[12] https://github.com/garypolhill/netlogo-owl
[13] https://github.com/garypolhill/netlogo-bitstring
[14] https://gitlab.com/doug.salt/gpg
[15] https://github.com/garypolhill/netlogo-list
[16] https://github.com/garypolhill/netlogo-math/
[17] https://github.com/garypolhill/netlogo-jvmgr
[18] https://github.com/garypolhill/NetLogo-tk
[19] https://github.com/DougSalt/ontoDot
[20] https://www.graphviz.org/
[21] https://github.com/garypolhill/ieeefp
[22] https://en.wikipedia.org/wiki/IEEE_754
[23] https://www.hutton.ac.uk/staff/gary-polhill
[24] https://www.hutton.ac.uk/staff/matt-hare
[25] https://www.hutton.ac.uk/staff/doug-salt
[26] https://www.hutton.ac.uk/staff/tony-craig
[27] https://www.hutton.ac.uk/research/departments/information-and-computational-sciences
[28] https://www.hutton.ac.uk/research/departments/social-economic-and-geographical-sciences
[29] https://www.hutton.ac.uk/research/departments/information-and-computational-sciences/social-simulation/projects
[30] https://www.hutton.ac.uk/research/departments/information-and-computational-sciences/social-simulation/bibliography