This page is just getting off the ground. It will hold information about the Debian ["AMD64"] porting project.
Released docs can be found here: http://alioth.debian.org/docman/?group_id=1314
CVS repository of some documents: http://cvs.alioth.debian.org/cgi-bin/cvsweb.cgi/doc/?cvsroot=debian-amd64
A user's experiences of Installation: http://www.carfax.org.uk/docs/64-bit/
Local ?WiKi FAQ: http://wiki.debian.net/index.cgi?debian-amd64-faq