The original Silver Case website, ran by Sagara Nobuhiko, contained a number of editorials, character profiles, Q&A and other interesting content related to the world of The Silver Case.
The website unfortunately does not exist anymore but it has been archived on the wayback machine. I personally find it quite hard to navigate since some of the layout is broken and most of the images are missing; Therefore I compiled all the relevant content right here.
Silver Maniax Part 1: A list of all the words that are passing in the background during the Transmitter chapters.
Silver Maniax Part 2: All the song titles that are shown at the end of each chapter.
Silver Maniax Part 3: The Mother Goose rhymes referenced in the third placebo chapter.
Timeline of the 24th Ward (this was updated and translated for the new website)
Character profiles:
Kusabi Tetsugoro
Kodai Sumio
Nakategawa Morichika
Morikawa Kyoshi
Hachisuka Chizuru
Baian Sayaka
Chapter Analysis:
#0 Lunatics
#1 Decoyman
#2 Spectrum
#3 Parade
#4 Kamuidrome
#5 Lifecut
#! Danwa/Tamura
*1 YUME
*2 HANA
*3 TSUKI
*4 AI
*5 HIKARI
While not as rich in content as the original website from the early 2000s, the modern day rendition of The Silver Case’s webpage still includes some interesting content; namely, a replica of the Kamuinet website from the Kamuidrome chapter, and a timeline of the 24th ward which in itself is an updated and translated version of the old one.
You can visit the official website here.
Here’s a link to an archived version in case the original ever goes down.