Neil Drumm wrote:
http://creativecommons.org/licenses/by-sa/2.5/. But I'm not a lawyer. I do know a lawyer at the EFF.
I sent the following to Jason Schultz (http://www.eff.org/about/staff/#jason_schultz):
Please let me know if you can help us sort this out or know someone who can.
Drupal.org hosts contributed modules and themes with the requirement that "All code must be licensed under GNU/GPL" [1].
We have considered using a Creative Commons Attribution-ShareAlike [2] icon set, Tango [3], but we are too confused about licensing issues to allow it.
We need to figure out any legal issues and make guidelines for contributors. I'm guessing that for the actual download, we need to add a text file next to the icons with attribution and a link to the CC license.
Since Drupal is a tool for building websites, requirements for sites built using Drupal and CC-licensed icons need to be figured out. Ideally, there shouldn't be any additional requirement; we do not require mentioning that a site runs on Drupal.
1. http://cvs.drupal.org/viewcvs/drupal/contributions/README.txt?view=markup 2. http://creativecommons.org/licenses/by-sa/2.5/ 3. http://tango.freedesktop.org/Tango_Desktop_Project
-- Neil Drumm http://delocalizedham.com/