A lot of torrents on akiba runs with the empornium tracker. A statement from the owners of empornium and puretna says they will permanently close their sites including the tracker. So many torrents here will not work longer.
http://torrentfreak.com/huge-bittorrent-porn-sites-permanently-shut-down-110113/
http://torrentfreak.com/huge-bittorrent-porn-sites-permanently-shut-down-110113/