Sophisticated P2P networks since 2001?

What happens to the four large networks of distributed distributed hash tables (DHT) P2P - Confectionery , CAN , Accord and Tapestry - since they all came out in 2001?

I know that academic projects lasted for several years, and for some of them sporadic versions of the service still appear, but did they ever end with large-scale, non-academic use? Is there still a community of active developers around any of them?

I have made several trips through Google and Wikipedia, but there is no real information about what happened recently, and their websites are all dying.

Update: I see that Chimera (Tapestry's successor) is still under active development, with recent research publications: http://current.cs.ucsb.edu/projects/chimera/index.html

Update # 2: if someone -1 is asked a question, I should be more clear regarding programming. I'm interested in a common P2P overhead library and related standards that will become a solid foundation for a P2P social networking application. All existing ones that I looked at, including Chimera, seem too underdeveloped and maintained and / or too outdated to form a solid level of infrastructure. I would like to know what other options I have.

Update # 3: . The DHT homepage raises several questions. It is based on Kademlia and, as far as I know, specializes mainly as a distributed search protocol for Bittorrent.

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did someone end up with large-scale, non-academic use?

DHTs were designed to solve a set of problems that have been described theoretically / abstractly. In 2001, people knew little about the practical aspect of P2P communication. The correct NAT traversal solutions are not available (or even understood correctly).

DHT P2P (.. ?) ? ? NAT, , ? ..).

, "", . / , .

, , Chaupal.

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