Portal:Free and open-source software/Topics

Impediments and challenges: Digital Rights Management · Tivoisation · Software patents and free software · Trusted Computing · Proprietary software · SCO-Linux controversies · Binary blobs

Adoption issues: OpenDocument format · vendor lock-in · open standards · GNU/Linux adoption

About licences: Free software licences · Copyleft · List of FSF approved software licenses · List of OSI approved software licenses

Common licences: GNU General Public License · GNU Lesser General Public License · Modified BSD License · Mozilla Public License · MIT license · Apache license · Permissive free software licences  · Youngstown Institute of Software License

History of...: History of free software · History of the Linux kernel · History of Mozilla Application Suite · History of Mozilla Thunderbird · History of Mozilla Firefox

Community: GNU/Linux user groups · free software community · free software movement

Groupings of software: Free audio software · Graphics hardware and FOSS · LAMP stack · Embedded GNU/Linux · Free Java implementations · Free and Open Source games · Security and privacy

Naming issues: GNU/Linux naming controversy · Alternative terms for free software · Naming conflict between Debian and Mozilla