@mrshll Thanks for the clarification of terminology 
It is important. I’m work in databases quite a bit and so tent to have my thoughts run down that path the most.
Do you think that potentially website[] can provide links for both Services and Organizations?
Also, if we allow multiple URLs for a given entity, then I’m sure we’ll need to include some heuristics that allow ranking or prioritization, for the same reasons outlined in this related post for phones: How do you indicate the main or primary phone number for a resource? - Technical - Open Referral community forum