Tabula Rasa: Hellblazer Interviews
- Interviews with Jamie Delano and Garth Ennis about their time on Hellblazer, and other work as well.
- http://www.tabula-rasa.info/AusComics/Hellblazers.html

Sailor Hellblazer
- A Sailor Moon/John Constantine crossover fan fiction.
- http://www.thekeep.org/~rpm/vertigo/sailor-hellblazer/

John Constantine's Friends and Family
- Brief text descriptions; current through issue #8.
- http://www.maths.tcd.ie/~afarrell/things/constantine.html

Hellblazer Home Page
- A Hellblazer discussion board, fan fiction, and an incomplete index of John Constantine appearances.
- http://www.netlink.co.uk/users/tripoint/hellblaz/

The Ultimate Hellblazer Index
- An index of appearances by the Vertigo character, John Constantine, and his relatives and alternates selves, both in his own title, Hellblazer and in other comics.
- http://www.qusoor.com/hellblazer

Straight To Hell : A HellBlazer Site
- Information on John Constatine: Hellblazer, with focus on the characters and the stories. Also, a small gallery and some interviews.
- http://www.insanerantings.com/hell/