"We received a letter from a lawyer represeting the CRIA, they were threatening with legal action and we need to start blocking Canadian traffic because of this. Thanks for your understanding, and sorry for any inconvenience."
It's back up. Thanks to ApeXz for the notice.
TorrentFreak: Demonoid Trackers Back Online
TorrentFreak: Demonoid Returns, Forced to Block Canadian Traffic By the CRIA
TorrentFreak: Demonoid Aftermath: An Open Letter to the CRIA - October 4, 2007