In addition to software user freedom, I also strongly believe in free culture and that all creative works everywhere should be free. Here are some resources on free software, culture, and licenses:

Based on these philosophies, my general tendency is to release software under strong copyleft licenses such as GNU GPL and GNU AGPL so as to help ensure it will remain forever free, and to dedicate my non-software works to the public domain wherever and whenever possible. Accordingly, you will see various works here on my site carry one of several licenses/notices, laid out below:

GNU GPLv3+

More verbosely, "Version 3 of the GPL or any later version". For a page and/or work on my site marked with a notice like "This work is licensed under GNU GPLv3+" you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

A copy of the GNU GPLv3 is available on the site as COPYING.GPL. You can also get a copy from the GNU project's website, at https://www.gnu.org/licenses/gpl-3.0.html. Related reading for the interested reader: Frequently Asked Questions about the GNU Licenses.

CC0 1.0 Universal

The "No Rights Reserved" tool in the Creative Commons toolbox of licenses/deeds, CC0 is a tool that helps the affirmer (the person associating CC0 with a work) dedicate the work to the public domain by waiving their copyright and related or neighbouring rights to the work to the fullest extent permitted by law. If the waiver is ineffective under applicable law, then CC0 acts as a fallback license from the affirmer that grants the public a royalty-free, non transferable, non sublicensable, non exclusive, irrevocable and unconditional license to use the work for any purpose.

For a page and/or work on my site marked with a notice like "This work is marked with CC0 1.0 Universal" I relinquish my copyright and related or neighbouring rights to that work and dedicate it to the public domain per the CC0 deed.

A copy of CC0 1.0 Universal is available on this site as COPYING.CC0, as well from the Creative Commons website.

Note: external links to archived copies, courtesy of the Internet Archive's Wayback Machine.

CC BY-SA 4.0

More verbosely, Creative Commons Attribution-ShareAlike 4.0 International. For a page and/or work on my site marked with a notice like "This work is licensed under CC BY-SA 4.0" you can redistribute it and/or modify it under the terms of the Creative Commons Attribution-ShareAlike license, explained on the license deed page linked above. In short, you must give proper credit, and if you modify and/or build upon the material then you must distribute your changes under the same license as the original.

A copy of CC BY-SA 4.0 is available on this site as COPYING.CC-BY-SA, as well from the Creative Commons website.

Note: external links to archived copies, courtesy of the Internet Archive's Wayback Machine.