Information is very scattered, but I added some links from https://meta.wikimedia.org/wiki/Category:Content_partnerships and its parent category (although not all releases are actual "partnerships"). There's probably more stuff on OTRS wiki: https://meta.wikimedia.org/w/index.php?title=OTRS/permissions-en-guide&direction=prev&oldid=758179
Actual guides, best practices etc. should be developed on Meta; in the meanwhile I've added kaldari's examples to the draft page https://commons.wikimedia.org/wiki/Commons:Verifying_permissions#Case_studies (which should probably merged with some other page, see talk).
geni, 21/09/2012 15:44:
On 21 September 2012 00:12, Ryan Kaldari rkaldari@wikimedia.org wrote:
Geoff (WMF general council) suggests that if we're going to put them on wiki, we should anonymize them, e.g. "Company X donated 2000 images...", otherwise, he doesn't have a problem with it.
And that is why you don't ask the legal department. The cases far more useful if you can use the information in them to track down what actualy went on.
Maybe, or maybe not; you can add to the page linked above yourself, I guess.
Nemo