Comment 12 for bug 174661

At Barry's request, the complete list of CC license that are "open source" for Launchpad's purposes:

  - CC-BY (the "Attribution" license)
  - CC-BY-SA (the "Attribution - ShareAlike" license)
  - CC-0 (that's a zero, not a letter O... CC-0 is meant to be like public domain, for jurisdictions that don't have public domain)

The above refers to both the "unported" (non-country-specific) versions of those licenses, and to the various country-specific versions. I.e., "CC-BY-SA Australia 3.0" would be fine.

Just to be completely clear: none of the NC ("non-commercial") or ND ("no-derivatives") CC licenses are open-source. If a project wants to use those variants, they'll have to arrange proprietary hosting with us.

For reference: an overview of CC licenses is at http://creativecommons.org/about/licenses .