TOP NZB Indexers 2017
The following nzbindex sites offer nzb files for download in categories like movies, tv, music and porn. They index (search) usenet for content to be downloaded by programs like sabnzbd, nzbget, sonarr.tv and Headphones. To use those sites it is imperative to get a VIP/Premium account. The safest way to pay is using cryptocurrencies like bitcoin. Sites who offer creditcard or paypal payments only should not be trusted.
This site has been around for a long time and has a great custom frontend - the push capabilities are most noteworthy.
OZnzb was once one of the big public nzb sites but closed its registrations after a prolonged downtime.
nzbhydra (Open Registration)
nzbhydra is open for registration and has a nice and modern user interface. Very fast response times to.