A short question; does a meta aggregation or collection of ontologies and structured vocabularies which exist out there, each single ones being ready to be used as linked data? (ideally with links to each other)?
I would expect such a collection to be made publicly available by an association or a consortium in the semantic web domain, but I'm not much into it (actually, I discovered this familys of concept a few days ago only, and things are fuzzy so I'm still learning about it).
I found this page until now but without any list of that sort.