What we really need is a new protocol based on Kademelia or something, a decentralized DNS.
Engineering such a thing to scale would be tough, but getting adoption might be easier than we think. It could be offered via click-to-install browser extensions and click-to-install free apps in app stores.
Easy. The reason for the other nets is because the governmental ones want to censor out parts. So if a domain on the govt net starts bypassing censorship by pointing at things on the other nets, the govt will consider that domain also an infringing domain and censor it too.
Of course, we're talking about Google. The US government wouldn't lightly block google.com. But it would start some sort of battle.
Engineering such a thing to scale would be tough, but getting adoption might be easier than we think. It could be offered via click-to-install browser extensions and click-to-install free apps in app stores.