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 • Open source license

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

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

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