Debian
Debian GNU/Linux is one of the most popular and influential Linux distributions around. It's known for strict adherence to the Unix and free software philosophies, the abundance of options it provides the user, and for being the base of many other distributions, like Ubuntu, MEPIS, DSL, Knoppix, etc. A classic among classics.
Donations accumulated until 2021/12: 1,923.70 € (VAT included)
For each item you purchase, we donate part of our profits to Debian Software. This way we all win :)
More information: http://www.debian.org/