Hi Tomasz,I'm not an expert in this, but the legal team at WMF interprets the Uniform Resource Identifier (URI) references in sections 4(a), 4(b), and 4(c) of the legal code to mean that we must include the link to the legal code with every use of the image or other CC-BY material.
We recently re-did our WMF blog format based on this interpretation.
-Matthew
On Thu, Aug 16, 2012 at 1:12 PM, Tomasz W. Kozłowski
<odder.wiki@gmail.com> wrote:
Hi Matthew,
I'd take the freedom to disagree with you; as far as I know, the CC
BY-SA licence (version 3.0, but also all the previous ones) does not
require linking to its text (at
<http://creativecommons.org/licenses/by-sa/3.0/>), not to mention
pasting the whole text.
The only requirement is to attribute the author in the way specified
by him/her, and in our case most of the time this means to mention the
name of the author and the name of the licence. But taking into
consideration Facebook's Terms of Use, it would obviously be safer to
link to the licence, agreed.
On the other side, I would really like to see a legal case against
Facebook, because it really seems weird if they could get a
"non-exclusive, transferable, sub-licensable, royalty-free, worldwide"
licence for all content that is uploaded to their servers, especially
if they could overrule a free licence like CC BY-SA simply by having
such a phrase in their Terms of Use.
--
Tomasz W. Kozłowski
a.k.a. [[user:odder]]
--
Matthew Roth
Global Communications
Wikimedia Foundation
+1.415.839.6885 ext 6635
www.wikimediafoundation.org