I have similar things happening with WikiPedia; photos of things in Letterkenny from my flickr stream are turning up on local articles, with a wide variety of licences but none are correct.

Like yourself, I don’t mind them being used, and don’t particularly mind missing out on the credit, but I really hate seeing someone else claiming the credit.

It has also happened that I’ve been in Council meetings where highly-paid planning consultants, architects and various consultants have come in to give us powerpoint presentations on development proposals or rezonings, and they’ve used photos from my website again without credit. Bit surreal.