From diaspora* project wiki
- subst:uwl|I don't know what the license is
- Your own work (best practices):
- self|GFDL|cc-by-sa-all|migration=redundant|Own work, copyleft, attribution required (Multi-license GFDL, CC-BY-SA all versions)
- self|Cc-zero|CC0 1.0 Universal Public Domain Dedication, all rights waived (Public domain)
- PD-self|Own work, all rights released (Public domain)
- self|GFDL|cc-by-sa-3.0|migration=redundant|Own work, copyleft, attribution required (GFDL, CC-BY-SA-3.0)
- self|GFDL|cc-by-3.0|migration=redundant|Own work, attribution required (GFDL, CC-BY 3.0)
- self|cc-by-sa-3.0|Own work, copyleft, attribution required (CC-BY-SA-3.0)
- Not self-made, but has been released under:
- Creative Commons licenses
- cc-by-sa-3.0|Attribution ShareAlike 3.0
- cc-by-sa-2.5|Attribution ShareAlike 2.5
- cc-by-3.0|Attribution 3.0
- cc-by-2.5|Attribution 2.5
- Free Art License
- Flickr photos
- subst:template 2|flickrreview|subst:uwl|Image from Flickr and I do not know the license
- subst:template 2|cc-by-sa-2.0|flickrreview|Uploaded to Flickr under Creative Commons Attribution ShareAlike 2.0
- subst:template 2|cc-by-2.0|flickrreview|Uploaded to Flickr under Creative Commons Attribution 2.0
- Public domain:
- PD-old-100|Author died more than 100 years ago
- PD-old|Author died more than 70 years ago
- PD-Art|Reproduction of a painting that is in the public domain because of its age
- PD-US|First published in the United States before 1923
- PD-USGov|Original work of the US Federal Government
- PD-USGov-NASA|Original work of NASA
- PD-USGov-Military-Navy|Original work of the US Military Navy
- PD-ineligible|Too simple to be copyrighted
- subst:Template 2|PD-textlogo|Trademarked|Logo with only simple text (wordmark)
- Other alternatives:
- subst:uwl|I found the image on Google or a random website
- Fair use|Fair use image
- Copyrighted free use|Copyrighted, but may be used for any purpose, including commercially
- Attribution|May be used for any purpose, including commercially, if the copyright holder is properly attributed