The Mana Bros Call of Cthulhu Pages
Resources, including the regularly updated "Turin (Italy)Guidebook" for 1920s, short Lovecraft bio and Italian Publishing History, Book of Characters: professions and generation rules (MSWord Zip); Niteside Dreams, alternate setting for Call of Cthulhu games using Film Noir conventions in a magic-rich world subtly corrupted by the Mythos.

Byakhee
Windows WYSIWYG computer program, investigator generator for any era and Delta Green, prints telegrams. Free, download source code.

Tales of Terror
A collection of grisly ideas for use in Call of Cthulhu and other games. Each Tale is a short horror scenario description, "stripped clean of rotting statistics and wretched prose", a paragraph or so, with three alternate Possibilities for developing the events behind the mystery.

Scooby Doo Cthulhu
Will the horror never cease? Stats for the 5 cartoon characters in CoC format. Jinkies!

Call of Cthulhu Adventures Online
3 by Michael C. LaBossiere: My Aunt's House, Drooler in the Dark, The Knife.

Starry Wisdom
Publishers of "The Whisperer," a UK Call of Cthulhu zine. The site provides details about the magazine, as well as extensive CoC resources and information.

Yog-Sothoth.com
Also known as 'CthulhuFan.com', this web site is dedicated to Chaosium's game, 'Call of Cthulhu'. Roleplaying in the worlds of H.P. Lovecraft.

Fallen Future: Cyberthulhu Gaming
A cyberpunk-genre rules expansion and adventure for the Call of Cthulhu RPG.

Propping up the Mythos
A guide to making objects from the stories of H.P. Lovecraft. Resource for making props for Call of Cthulhu or Cthulhu Live games.

Call of Cthulhu WebClub
Features message board and webchat-based games.

Shoggoth.net:
An interactive weblog, forum, and article archive for the Mythos & Call of Cthulhu RPG Community. Current and updated often.

Berkley Cthulhu Archive
A collection (somewhat dated) of mailing list archives, character sheet templates, character generators, pictures and other miscellaneous items. Most of the material dates from 1993-1996.

Unseen Masters
Official site for the "Unseen Masters" adventure supplement for Chaosium's Call of Cthulhu Role Playing Game.

Call of Cthulhu d20 Character Sheet
Preview and download a new character sheet (.pdf) to use with the d20 Call of Cthulhu RPG system.

The Deep Dark Nasty
A site that has information on playing Call of Cthulhu in a oriental, chop-saki, setting.

Cthulhu Coffee
A slightly humorous website that has information about the Cthulhu Mythos and various convention parties the owners throw.

Mook's Mythos Madness
Call of Cthulhu, Cthulhu Live, Lovecraft and Cthulhu Mythos art and props site. Prop making techniques and larping discussions

Shane's Creepy Picture Gallery - Call of Cthulhu Supplement
The primary concern of this website is to provide interesting pictures of people, places, things, etc. that may prove useful to Keepers.

CoC CharGen
OpenSource character generator written in Java. Released under the GNU GPL.

Vampulhu!
Conversion rules and design outline for a Vampire: the Masquerade / Call of Cthulhu hybrid RPG under White Wolf rules.

CTHULHU International
CTHULHU International provides support to Call of Cthulhu RPG and its Pagan Publishing Supplements; Delta Green, players and Keepers and to promote the writings of H.P. Lovecraft.

The Official Call of Cthulhu RPG Homepage
Chaosium's CoC RPG web page has the official information for the game and supplements, as well as useful downloads, fiction, news, and links.

Javascript Cthulhu d20 Character Generator
A rather hefty client-side script which can take a while to load on Internet Explorer.

The Black Seal
A magazine for the Call of Cthulhu RPG. The site provides previews, ordering information, and instructions on how to submit new material.

Cthulhu Dark Ages
A supplemental website for the Call of Cthulhu roleplaying game, setting the clock back 1000 years into the middle ages.