The Art of Self Destruction
- Archive of general information as well as music downloads, images, fonts, desktop themes, discography and tour information.
- http://www.taosd.net/

TheFragile.com
- Fan site offering free email, news, photos, fan art, discography, merchandise and a biography of Trent Reznor
- http://www.thefragile.com

ThePerfectDrug
- A collection of digital artwork of done by fans, as well as a collection of japanese halo scans and related japanese media. Also offers essays.
- http://www.0-halo.net/

Burning Souls
- Discography, lyrics, videos, news, downloads, and a forum.
- http://www.burningsouls.com/

Perfect Little Dream: Nine Inch Nails
- Discography, lyrics, photographs, articles, polls, Winamp skins, games, and forum.
- http://www.nineinchnails.at/

Unofficial NIN Home Page
- Song parodies, trivia, discography, FAQs, tablature and chords, lyrics, and articles.
- http://nothing.nin.net/