"(content may be copied verbatim)" means that the owner(s) of the website has/have given permission for information to be copied from his/her/their website. Sites without this notice may be referenced, but content may not be copied word-for-word.

Hajime Kanzaka resources[]

Tokitama shan chi
Wikipedia entry (Japanese) (content may be copied verbatim)

Slayers resources[]

Slayers Uncensored (content may be copied verbatim)

Slayers Database (content may be copied verbatim)

Slayers Victory!
Tokitama shan chi
QP's Slayers Page
Slayers Universe (Inverse.org), a specialized Slayers fansite with lots of information and other resources about the series. (Content may be copied verbatim)
Slayers Serious
The Slayers Vault
Mazoku.org
Wikipedia entry (content may be copied verbatim)
Wikipedia entry (Japanese) (content may be copied verbatim)
Stellheim's Slayers Page (Japanese)
Saillune Material Library (Japanese)

Music reference (Japanese)
Character reference (Japanese)
Staff reference (Japanese)

E&G Films (Japanese)

Slayers (Japanese)
Slayers NEXT (Japanese)
Slayers TRY (Japanese)

Slayers Présentation (French)
SlayersFan.com, another famous Slayers fansite, focused on fanfics, pictures, screenshots and forum discussions of the series.
List of Slayers anime serializations at aniDB, a non-profit anime database that is open freely to the public.
List of Slayers-related entries at MyAnimeList.net, an anime/manga user reviews and general anime information website.
Slayers information card entries at AnimeNFO.com, an open anime/manga information index.