Is this down for good or will it return? 
It'll be back. I had an issue with my server so I decided to use the opportunity to upgrade my OS and clean up a bit but I didn't have time to restore all my services yet. I still need to bring back bittit.info and Biticker and then it's apophenia's turn... Sorry!
I really hope it does come back soon. I keep checking it and it's still not back after three months
I know you don't owe anything to us, I just thought it was a really cool site, and I hope it comes back!