However, you do know that these sites share a common interest. Users can use the ring navigation to rapidly move from one site to the next, absorbing or ignoring similar content as they move. But the idea seems like it is dead. No offense to those folks that participate in WebRings, but it doesn't really work. I did some extensive searching and found very few sites that participated.
Larger sites are jealous about spreading the traffic wealth.
WebRings don't seem to work because only small sites use them. But it seems like a good idea. It seems like many sites would want to be part of the system. It would seem like it would drive traffic to a site. It seems like it would build community.