Yeah, you need a Uniform Reference Indicator (URI) for every use of a CC-BY photo. Look at sections 4a, 4b, and 4c here:
http://creativecommons.org/licenses/by-sa/3.0/legalcode

Every day news outlets and blogs and most everyone online violates this and it's not enforced by anyone (Creative Commons or otherwise), but agreed we should be a model on this as we are one of the larger free license image repositories out there.

Some discussion of the matter here in relation to Facebook:
http://meta.wikimedia.org/wiki/Legal_and_Community_Advocacy/CC-BY-SA_on_Facebook


-Matthew


On Tue, Sep 4, 2012 at 4:14 PM, Paul Selitskas <p.selitskas@gmail.com> wrote:
Hi everyone.

Is it necessary to provide attribution and license text URL after
every use of CC image? We can make a page 'Copyrights' on
wikilovesmonuments.org where every thing will be attributed. I mean
the banner stuff, website stuff, etc. Anyway, we'd have to link to
this page in the banner or what...

On Wed, Sep 5, 2012 at 2:04 AM, Tomasz W. Kozłowski
<odder.wiki@gmail.com> wrote:
> Hi Platonides and Pete,
> in any case, we cannot use an image licenced under a Creative Commons
> licence (which disqualifies almost all pictures from Wiki Loves
> Monuments), as they all require an attribution (the name or pseudonym
> of the author/copyright holder) and a URL to the licence text (not the
> deed!).
>
> (Please also note that Susana specifically mentioned she does not need
> to be attributed to when the WLM logo is used in relation to the
> contest; however, the licence still requires a working URL to its
> text, so we are violating its requirements here, too.)
>
> I agree that we (the Wikimedia community) should set an example in the
> usage of freely licenced files, so I am thinking as what we should do
> here.
>
> We have two options: (1) remove the image created by Saibo from the
> banners (but we should then also remove the WLM logo) or (2) add
> working links to the images in the banners, and possibly also protect
> their description pages; this would, however, mean that we'll need to
> rebuild the templates so the links work for the files as well as for
> the websites; to do that, we could only use the text as the link.
>
>
> Tomasz
>
> _______________________________________________
> Wiki Loves Monuments mailing list
> WikiLovesMonuments@lists.wikimedia.org
> https://lists.wikimedia.org/mailman/listinfo/wikilovesmonuments
> http://www.wikilovesmonuments.org



--
З павагай,
Павел Селіцкас/Paul Selitskas
Wizardist @ Wikimedia projects
p.selitskas@gmail.com, +375257408304
Skype: p.selitskas



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Matthew Roth
Global Communications Manager
Wikimedia Foundation
+1.415.839.6885 ext 6635
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