The quickest way to be added to this nice list is to send bug fixes, corrections, and/or updates to me ;-).
If you want to do a major review, you can use the native LyX file (see original source) and send diffs against it, because diffs against SGML don't help too much.
David Ranch <dranch at trinnet dot net>: For encouraging me to write this HOWTO, his editorial comments on the first few revisions, and his contributions to various IPv6 testing results on my IPv6 web site. Also for his major reviews and suggestions.
Pekka Savola <pekkas at netcore dot fi>: For major reviews, input and suggestions.
Martin F. Krafft <madduck at madduck dot net>: For grammar checks and general reviewing of the document.
John Ronan <j0n at tssg dot wit dot ie>: For grammar checks.
Georg Käfer <gkaefer at gmx dot at>: For detection of no proper PDF creation (fixed now by LDP maintainer Greg Ferguson), input for German books, big list of URLs, checking all URLs, many more suggestions, corrections and contributions, and the German translation
Michel Boucey <mboucey at free dot fr>: Finding typos and some broken URLs, contribute some suggestions and URLs, and the French translation
Michele Ferritto <m dot ferritto at virgilio dot it>: Finding bugs and the Italian translation
Daniel Roesen <dr at cluenet dot de>: For grammar checks
Writing a LDP HOWTO as a newbie (in LyX and exporting this to DocBook to conform to SGML) isn't as easy as some people say. There are some strange pitfalls... Nevertheless, thanks to:
Credits for fixes and hints are listed here, will grow sure in the future
S .P. Meenakshi <meena at cs dot iitm dot ernet dot in>: For a hint using a "send mail" shell program on tcp_wrapper/hosts.deny
Frank Dinies <FrankDinies at web dot de>: For a bugfix on IPv6 address explanation
John Freed <jfreed at linux-mag dot com>: For finding a bug in IPv6 multicast address explanation
Craig Rodrigues <crodrigu at bbn dot com>: For suggestion about RHL IPv6 setup
Fyodor <fyodor at insecure dot org>: Note me about outdated nmap information
Mauro Tortonesi <mauro at deepspace6 dot net>: For some suggestions
Tom Goodale <goodale at aei-potsdam dot mpg dot de>: For some suggestions
Martin Luemkemann <mluemkem at techfak dot uni-bielefeld dot de>: For a suggestion
Jean-Marc V. Liotier <jim at jipo dot com>: Finding a bug
Yaniv Kaul <ykaul at checkpoint dot com>: Finding a bug
Arnout Engelen <arnouten at bzzt dot net>: For sending note about a draft was adopted to RFC now
Stephane Bortzmeyer <bortzmeyer at nic dot fr>: Contributing persistent configuration on Debian
lithis von saturnsys <lithis at saturnsys dot com>: Reporting a misaddressed URL
Guy Hulbert <gwhulbert at rogers dot com>: Send a note that RFC1924 is probably an April fool's joke
Tero Pelander <tpeland at tkukoulu dot fi>: Reporting a broken URL
Walter Jontofsohn <wjontof at gmx dot de>: Hints for SuSE Linux 8.0/8.1
Benjamin Hofstetter <benjamin dot hofstetter at netlabs dot org>: Reporting a mispointing URL
J.P. Larocque <piranha at ely dot ath dot cx>: Reporting archive URL for maillist users at ipv6 dot org
Jorrit Kronjee <jorrit at wafel dot org>: Reporting broken URLs
Colm MacCarthaigh <colm dot maccarthaigh at heanet dot ie>: Hint for sendfile issue on Apache2
Tiago Camilo <tandre at ipg dot pt>: Contribute some URLs about Mobile IPv6
Harald Geiger: Reporting a bug in how described the bit counting of the universal/global bit
Bjoern Jacke <bjoern at j3e dot de>: Triggered me to fix some outdated information on xinetd
Christoph Egger <cegger at chrrr dot com>: Sending note about "ip" has problems with IPv4-compatible addresses on SuSE Linux 9.0 and trigger to add a hint on 6to4-radvd example
David Lee Haw Ling <hawling at singnet dot com dot sg>: Sending information about a tunnel broker
Michael H. Warfield <mhw at iss dot net>: Sending note about suffix for 6to4 routers
Tomasz Mrugalski <thomson at klub dot com dot pl>: Sending updates for DHCPv6 section
Jan Minar <jjminar at fastmail dot fm>: Reporting minor bugs
Kalin KOZHUHAROV <kalin at tar dot bz>: Fixing a not so well explanation
Roel van Dijk <rdvdijk at planet dot nl>: Reporting broken URLs
Catalin Muresan <catalin dot muresan at astral dot ro>: Reporting minor bugs
Dennis van Dok <dvandok at quicknet dot nl>: Reporting minor bugs