Also at the main page https://bitcoinexplorer.org/ Network Summary → Difficulty
i kinda like this. i wonder what will happen if / when ethereum switches off proof of work. seems like it could mean moar cheaper electricity in the mining space.
gpus get more available
You actually believe ETH can "switch off proof of work"?
Needs to be with consensus and the proof of work chain needs to become less than 5% of the network and value compared to the non proof of work chain. Then i would consider it technically switched off. But lets see.
Yahoo News is covering mining difficulty adjustments nowadays:
Bitcoin mining difficulty at a record high
A great tool to monitor the progress over the 2,016 block epoch is fork.lol's Difficulty Retarget chart:
And a great Dashboard, overall: