Open-source religions employ open-source methods for the sharing, construction, and adaptation of religious belief systems, content, and practice. In comparison to religions utilizing proprietary, aut
Page of the Principia Discordia that includes the following Copyright disclaimer, "Ⓚ ALL RIGHTS REVERSED – Reprint what you like," the earliest example of what would become a declaration of copyleft.
Open-source software is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code
Participants in the Free Knowledge Game Jam 2015, an open source and open data oriented game jam