Museum-digital is composed of different portals. Most of them are regionally structured.
The themator is a tool we developed to enable museums and like-minded people to create digital exhibitions and - more generally - to easily engage in digital storytelling. As the themator is largely monolingual, we have set up different instances of it.
Around 2010, we started to use controlled vocabularies to facilitate the common tagging and interlinking of digitized objects. For a long time, these vocabularies were not accessible for any outside viewers. Since they may be a useful resource to some, we have since developed md:term as a public and hopefully easily accessible portal for our (and some other) controlled vocabularies.