Either are a solution. Neither are getting implemented though. Judging by the history of the web, there's a very strong tendancy to form natural monopolies, s

Either are a solution. Neither are getting implemented though. Judging by the history of the web, there's a very strong tendancy to form natural monopolies, so I'm not entirely sure you can just legislate away their dominance. I'd rather see them classed as common carriers. That can't just arbitrarily ban people from the network.