Benevolent Dictator for Life
Benevolent Dictator for Life (BDFL) is a title given to a small number of open-source software development leaders, typically project founders who retain the final say in disputes or arguments within the community.
The phrase originated in 1995 with reference to Guido van Rossum, creator of the Python programming language. Shortly after van Rossum joined the Corporation for National Research Initiatives (CNRI), the term appeared in a follow-up mail by Ken Manheimer to a meeting trying to create a semi-formal group that would oversee Python development and workshops.
BDFL should not be confused with the more common term for open-source leaders, "benevolent dictator", which was popularized by Eric S. Raymond's essay "Homesteading the Noosphere" (1999). Among other topics related to hacker culture, Raymond elaborates on how the nature of open source forces the "dictatorship" to keep itself benevolent, since a strong disagreement can lead to the forking of the project under the rule of new leaders.
Examples of people sometimes referred to as Benevolent Dictators for Life
- Ton Roosendaal, creator of Blender
- Dries Buytaert, the creator of Drupal
- Richard Stallman, founder of the GNU Project
- Linus Torvalds, creator of the Linux kernel
- Steve Coast, the founder of OpenStreetMap
- Larry Wall, the creator of Perl
- Rasmus Lerdorf, the creator of PHP
- Guido van Rossum, creator of Python
- Brian D. Ripley, R core member
- Yukihiro Matsumoto, the creator of Ruby
- Fabio Erculiani, the creator of Sabayon Linux
- Patrick Volkerding, the creator of Slackware
- Mark Shuttleworth calls himself the "Self-Appointed Benevolent Dictator for Life", or SABDFL, and the Ubuntu community often uses this name to refer to him
- Jimmy Wales, co-founder of Wikipedia 
- Chris Lattner, founder and lead of LLVM, Clang, and related projects.
- Theo de Raadt, the founder and leader of OpenBSD and OpenSSH projects.
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- Randy Fay, "How Do Open Source Communities Govern Themselves?"
- Ingo, Henrik (2006). "Benevolent dictator". Open Life: The Philosophy of Open Source. ISBN 978-1-84728-611-6. Retrieved 2011-03-05.
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- http://yihui.name/en/2009/10/50000-revisions-committed-to-r/a. Missing or empty
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- Chozick, Amy (2013-06-27). "Jimmy Wales is Not an Internet Billionaire". New York Times.