Carbon Emacs Package - Carbon/OSX distribution of GNU Emacs. Downloads, list of included libraries and FAQs. - http://homepage.mac.com/zenitani/emacs-e.html
MacEmacs JP Project - A project to share the knowledge about the Macintosh OS X port for the Japanese language environment. Featuring mailing lists and downloads. - http://macemacsjp.sourceforge.jp/en/
Aquamacs: Emacs for Mac OS X - Details about the differences between Aquamacs and other OS X Emacs implementations, hints about LaTeX editing and information about participation in development of Aquamacs. Downloads are available. - http://aquamacs.org/
Emacs 21 for Mac OS X - Latest news, a FAQ and tips about how to build the Macintosh port. - http://members.shaw.ca/akochoi-emacs/
Emacs 21 for Mac OS 8/9 - Andrew Choi's port of Emacs to the Apple OS. - http://mac-emacs.sourceforge.net/