MIT Scheme
C-Scheme
Edwin
Liar
(Previously "C-Scheme") A Scheme implementation by the MIT Scheme Team (Chris Hanson, Jim Miller, Bill Rozas, and many others) with a rich set of utilities, a compiler called Liar and an editor called Edwin.
MIT Scheme includes an interpreter, large run-time library, Emacs macros, native-code compiler, emacs-like editor, and a source-level debugger.
MIT Scheme conforms fully with R4RS and almost with the IEEE Scheme standard. It runs on Motorola 68000: HP9000, Sun-3, NeXT; MIPS: Decstation, Sony, SGI; HP-PA: 600, 700, 800; VAX: Ultrix, BSD, DEC Alpha: OSF; Intel i386: MS-DOS, MS Windows, and various other Unix systems.
See also: LAP, Schematik, Scode.
http://gnu.org/software/mit-scheme/.
Usenet newsgroup: news:comp.lang.scheme.c.
Mailing list: mit-scheme-announce@gnu.org (cross-posted to news).
E-mail: <mit-scheme-devel@gnu.org> (maintainers).