Wikipedia is an encyclopedia written entirely by volunteers. If you wish to contribute to our articles, feel free to join thefree and open-source task force. To find a place to start, you canexpand a stub or improve existing articles. To pick an existing article, you could choose from the list ofmost-viewed FOSS articles or avital article about free and open-source software. The vital articles are listed below with their currentcontent assessment rating:

• Android (operating system)
• Tim Berners-Lee
• Copyright
• Donald Knuth
• Linux
• Open-source software
• Patent
• Linus Torvalds
• Berkeley Open Infrastructure for Network Computing
• Bitcoin
• Copyleft
• Debian
• Digital rights management
• Brendan Eich
• Emacs
• Ext4
• Firefox
• Free content
• Free-culture movement
• Free Software Foundation
• GIMP
• GNU Project
• GitHub
• Inkscape
• KDE
• Leslie Lamport
• Lawrence Lessig
• LibreOffice
• Lua
• Yukihiro Matsumoto
• Bram Moolenaar
• MySQL
• Ogg
• Open source
• OpenGL
• PHP
• Perl
• Python (programming language)
• R (programming language)
• Guido van Rossum
• Ruby (programming language)
• SPICE
• Richard Stallman
• Swift (programming language)
• TeX
• Tor (network)
• VLC media player
• Vim (text editor)
• VirtualBox
• Wine (software)
• X Window System

• What areportals?
• List of portals
• Sub-pages of Portal:Free and open-source software/Contribute