So nyaa.se had been having some "problems" in the past few days, people thinking it would be over soon but it turns out the torrent tracker and all of its content has been terminated and shut down.
This means if you weren't streaming on sites like Hulu or Crunchyroll or more underground stuff like KissAnime, you'll now have to look for other torrent trackers. This means a lot of things like checking if the tracker is private or not (BakaBT recently switched to being a private tracker, huge change considering it has one the largest, if not the biggest, collection of anime out there) because you'll have to find a way in be it by invitation from one of its members or filling out a form that needs further approval from someone in charge.
That or just jump on IRC and get most of your favorite shows out there. I've personally used IRC over the past 6 to 7 years but some shows you just won't find there. Nyaa was perfect for that but now that it's gone, options are looking slim for people.
I think it's a pretty big deal and I just thought I'd let anybody know in case they were one of its users and wasn't aware of this.