Horror In Nomine
You have found the way to In Nomine on Horror:
In Nomine Collection - The best of the In Nomine mailing list: plot hooks, adventures, NPCs, theories, and tips.
In Nomine (official page)
Amadán's In Nomine Page - Several thought-provoking NPCs, as well as In Nomine New York and San Francisco (see Settings), In Nomine Touched by an Angel, and some cuts from the Corporeal Players Guide
Annotations: In Nomine - New Superiors (including Heretical ones), NPCs, fan fiction and the odd location or two
The Last Days - A not-quite-canonical view of In Nomine. It contains new or modified Superiors (e.g. Uriel or Khalid), NPCs, adventure seeds, and rules for adapting In Nomine to a LARP environment or playing Word-bound Celestials. Some overlap with the In Nomine Collection.
Liber Licentiae Moeticae - Seriously oddball and weird; mostly NPCs, with some fun artifacts, minor choirs and bands, the occasional fan fiction and adventure seed. Warning: may make your brain hurt.
Morning Star Ascendant - Golem rules, new NPCs, choirs, superiors, plot seeds
A Most Foolish In Nomine Web Site! - Manny Nepomuceno's In Nomine site, containing sundry game resources for In Nomine. Also includes writeups for In Nomine Dragonlance and In Nomine Philippines.
Nobody Expects the Divine Inquisition - NPCs, gadgets, intriguing new Discords, and house rules.
WebRing: innomine - List of interlinked sites forming the "In Nomine RPG Webring". Help build the largest human-edited directory on the web.