I think the only (briefly) successful metaweb service I used was a "passive" Roleplaying Game. It ran in the background while you surfed and you could leave com

I think the only (briefly) successful metaweb service I used was a "passive" Roleplaying Game. It ran in the background while you surfed and you could leave comments, bombs, treasures, etc on websites you visited. I would forget it was running, visit an interesting article, and BOOM a bomb would go off taking my hit points. It was called aethernet or ethernet or something like that. I can't find any evidence of its existence anywhere online now. It also had a central repository of links and users would build "adventures" that were lists of links and you would visit each site along the narrative gaining experience and running into traps laid by other players when you wanted to be active. I would love to have a layer of academic discourse over anything online, but I agree it seems unlikely this would take off considering how large the world wide web is and how spread out those comments would be.