Hi!
Saying simply "Source pms.wikipedia.org" (or whatever language version) should be enough for anything that does not exceed two paragraphs in length.
It's what basically all small newspapers already do when using pics they get from the net. But anyway I'd rather hear what the board thunks about it. Having a clear statement for us to present to redactors would greatly simplify the matter. It's a fair deal: they get free content, we get free marketing.
Bèrto