Debian GNU/Linux users will find that their distribution includes CMUCL packages (Stable version, Testing version, Unstable version) which they can grab using apt-get. More information about the CMUCL port to Debian can be found at CMUCL on Debian.
Miles Egan maintains Redhat 7.x CMUCL RPMs. These are native RPMs (not built from Debian packages), are unofficial, and are supported solely by him, not by the CMUCL team. You can find them at http://www.caddr.com/lisp.
The EncyCMUCLopedia is a collection of most - if not all - of the documentation related to CMUCL. It is updated a couple of times per year. The latest version is June 17, 2001. The Design of CMU Common Lisp documents internal details of the CMU Common Lisp compiler and run-time system. By Robert A. MacLachlan (ed), updated January 15, 2003.
Not sure anyone besides me has had a problem with this, but I just thought I'd mention that if you set *print-lines* and/or *print-right-margin* to sufficiently low values, error-messages may show up as just "..", which is quite confusing. Oh, and if something is weird, remember to try without your super-tweaked init.lisp-file, like I didn't. (lisp -noinit)
- CLORB - CLORB is a CORBA ORB that implements the OMG Lisp Language Mapping for CORBA
- CloserLookAtCharacters - Characters are not their codes -- Encodings and external format in Common Lisp
- CMUCL Hints - A collection of miscellaneous hints and tips for CMUCL users - some also apply to the CMUCL spin-off, SBCL
- CMUCL on Debian - CMUCL has been 'ported' to Debian by Peter Van Eynde
- Garnet - Garnet is a user interface development environment and GUI toolkit for Common Lisp and
- Hemlock - Hemlock is an Emacs-like editor that comes with CMUCL (Debian users need to get the cmucl-source package)
- SBCL - Steel Bank Common Lisp is an open source / free software Common Lisp implementation
- SLIME - SLIME is the Superior Lisp Interaction Mode for Emacs