I just published qLabel, an Open Source jQuery plugin that allows to annotate HTML elements with Wikidata Q-IDs (or Freebase IDs, or, technically, with any other Semantic Web / Linked Data URI), and then grabs the labels and displays them in the selected language of the user.
Put differently, it allows for the easy creation of multilingual structured websites. And it is one more way in which Wikidata data can be used, by anyone.
Contributors and users are more than welcome!