by Gez » Tue Sep 28, 2010 7:44 am
There are many different Creative Commons license. They can be recognized by the abridged form they have for their names, like CC-BY-NC-SA etc.
CC: Creative Commons (they all have that, of course)
BY: Attribution. Reusing is allowed, as long as the authors are credited.
NC: Non-commercial: Reusing is allowed, as long as it's not for commercial purposes.
SA: Share-Alike: Reusing is allowed, as long as it is put not under a more restrictive license.
ND: No Derivatives: Reusing is allowed, as long as the content is used as-is, without modifications.
There were others, but they've been retired.
SA and ND are mutually exclusive, since ND forbids modifications while SA requires that modifications be put under the same license. Otherwise, they can be combined how you want. The six main licenses are therefore:
* Attribution (CC-BY)
* Attribution Share Alike (CC-BY-SA)
* Attribution No Derivatives (CC-BY-ND)
* Attribution Non-Commercial (CC-BY-NC)
* Attribution Non-Commercial Share Alike (CC-BY-NC-SA)
* Attribution Non-Commercial No Derivatives (CC-BY-NC-ND)
If you don't put any restriction at all (not even attribution), then it is known as CC0.