Mindspeller, a spin-off from the KUL, is building a semantic network from the dutch (and later also english) language. To obtain enough data Mindspeller set up a public word game where you can create your own little cluster. You can try it out yourself: www.gamespeller.com. To get an idea, the info Mindspeller received for Netflix in a small dashboard view
Technically: I used D3 and Laravel.