Creative Commons
For creative works and documentation, it is best to use a wp:Creative Commons license license for your work. There is the GNU Free Documentation License, but that license is not better than a CC0 or CC-BY or CC-SA license, perhaps more difficult to apply to source code examples, and not more popular.
The Creative Commons set of licenses are used to support Free Cultural Works.
Applying the Creative Commons
- especially with data
- https://wiki.creativecommons.org/wiki/Data
- https://wiki.creativecommons.org/wiki/Marking_your_work_with_a_CC_license#Example:_Dataset
Watch
https://creativecommons.org/videos/wanna-work-together/
Case Study
Autodesk is a major software company. Their 'Customer Support' Knowledge Network website runs on Drupal while the content is licensed under a CC license. See https://knowledge.autodesk.com/customer-service/share-the-knowledge