The domain is now working again along with a newly registered one
Demonoid, the BitTorrent site you just can't keep down, may be on its way back, again. It was shut down during summer and it looked like the end as much of the team was, allegedly, arrested. The tracker actually came back, for a while last year, but it went down again.There were no signs of life from the site though, until very recently. There's now a new Demonoid.hk domain registered which, while not directing users to any site, is at least working in some fashion.
The old Demonoid.me domain is working as well, in that it's redirecting to the new Hong Kong one. A somewhat working domain is a long way from a relaunched site, so Demonoid fans shouldn't be getting too excited, but at least there's some hope.