As zugpferdchen has correctly pointed out, the person who takes a photo would hold the copyright to that photo, even if it is just a photo of a Playmobil box on a store shelf or a photo of a Playmobil catalog. I know it sounds ridiculous, but that is the way it works, and that's the way it should work, IMHO. The fact that the person is taking a photo of a Playmobil item (box or catalog) is an example of "fair use" just the way that it is OK to take photos of other people's displays at a convention and then post those photos online (as long as the photographer is not also claiming to have created the photo subject.)
It would seem to be simple good manners to ask before copying photos from one website to another (as most people seem to do already.) In my opinion, though, it should not be necessary to ask if it is all right to post a link to something in another website - that is the nature of the internet and if someone posts something to a website he or she should be glad that someone else thinks it is worthy of notice. The case that started this whole conversation was that Hadoque simply repeated a list of set names and numbers, something which does not violate copyright in any way.
