» ClearCase VC (CC-VC)    An extension of the GNU Emacs VC package which understands the ClearCase configuration management system. This package is not officially supported, but the author is willing to fix bugs in it as time permits.    ftp://rtfm.mit.edu/pub/cc-vc/

» Clearcase VC for NT Emacs    Extension to the Emacs lisp version control package, not just for NT.    http://www.fukt.hk-r.se/~flognat/vc/

» Emacs ClearCase integration    This is a ClearCase integration package for GNU Emacs (implemented as a vc.el backend) that works with recent versions of it (including CVS version).    http://vc-clearcase.sourceforge.net/

» EmacsWiki: Clear Case    Discussion and information about ClearCase tools for Emacs.    http://www.emacswiki.org/cgi-bin/wiki/ClearCase