Practical Scheme

Practical-scheme.net has 4 URLs listed in 4 Dmoz categories.

Practical Scheme
Libraries and extensions to use Scheme as a production tool, to process daily chores for system engineers and programmers: parse files, generate reports, watch processes, provide small GUI wrappers, etc. English, Japanese.
http://practical-scheme.net/
Top/Computers/Programming/Languages/Lisp/Scheme

Gauche
An R5RS Scheme implementation developed to be a handy script interpreter. Quick startup, built-in system interface, native multilingual support. [Open source, BSD license]
http://practical-scheme.net/gauche/
Top/Computers/Programming/Languages/Lisp/Scheme/Implementations

WiLiKi
Schemeで書かれたWikiClone、WiLiKiの紹介と関連議論。
http://practical-scheme.net/wiliki/wiliki.cgi
Top/World/Japanese/コンピュータ/ソフトウェア/グループウェア/Wiki

Practical Scheme
Scheme処理系 Gauche やライブラリの開発をしている。Lisp関連のコラムや翻訳文書。
http://practical-scheme.net/index-j.html
Top/World/Japanese/コンピュータ/プログラミング/言語/Lisp