I don't know if vendors are allowed to list products from competing stores that might be used in their promo images so it's only for Rosity products that they can link to. I've found most vendors very gracious though when I've asked them for more information about something they've used. I usually try to credit items but sometimes I don't remember the exact store name for the product and if I can't find it in the vendor's list of products I usually give up. :)