There's Namecoin for decentralised DNS/domain registration.
Yes. Namecoin is ideal for registering domain names without any central operator behind it. While the concept is promising, it only decentralizes domain name access/creation, not the whole internet.
Still, it could be used in combination with another network whose purpose is to decentralize the internet.
Does it really need a huge hash to secure the network? Why not make it cost effective by removing the pow side. As far as I know nodes can verify transaction even without miners. And anything not acknowledge by majority of the nodes is not accepted to modify what is in the ledger. I would love to see a green world where heat generating miners is out of the scene.
It could be that way, as it is energy efficient, and removes miners out of the equation. However, I was more inclined towards PoW consensus since it is the most secure up to date. I believe that at some point PoS would be improved, once ETH migrates to Casper, making it a viable and better alternative towards securing any cryptocurrency's network. But until now, PoW would be the most secure way towards helping protect the network against 51% attacks. Just my thoughts.
