Those are a lot of the major ones, but really its been a popular field of research in academia for at least a decade. So there are quite a lot of papers and even careers and even some standards groups that have been working on different types of content-oriented networking for quite some time. So its not just the most popular ones.
Fascinating. I just started a project called the Interplanetary Publication Protocol (very incomplete site at https://interplanetary.pub) and am looking at all possibilities for content-based networking/data retrieval.
If you're knowledgeable on this, I would love to pick your brain a little - my email is s@slm.space.
