SchemeWiki.org

SchemeWiki.org is run by Schematics. The main project hosted here right now is the Scheme Cookbook.

Scheme Wikis

Here is a list of wikis which are either Scheme-related, or implemented in Scheme, or both.

Schematics Scheme Cookbook - Practical documentation for using Scheme (PLT-oriented)
MoshiMoshi Wiki - Wiki implemented in PLT Scheme
Scsh Wiki - Wiki for scsh, the Scheme Shell, implemented in scsh
SISC Wiki - Wiki for SISC Scheme
WiLiKi - WiLiKi is a wiki implemented in Gauche Scheme
CommunitySchemeWiki (CSW) - A general-purpose wiki for the Scheme community, running on WiLiKi
Scheme Cross Reference - A directory of Scheme syntax, procedures, and variables found in various Scheme implementations
Chicken Code Snippet Wiki - Code snippet wiki for the Chicken Scheme-to-C compiler