Clans and Guilds

Anime-Madness
Small linkshell in the Caitsith world made up of a group of close friends.
http://www.anime-madness.com/ffxi/

Aradorn
Bismarck server linkshell site containing member information and a forum.
http://www.aradorn.com/

Avengers
Phoenix server linkshell site featuring member information and a Vana'diel clock.
http://www.teamavengers.org/

Banished Chronicles
Shiva server linkshell site with a discussion forum, events calendar, screenshot gallery, and collaborative guides maintained by the members.
http://www.banishedchronicles.org/

Clan Wind
Asura server linkshell. Fishing database, Vana'diel clock, linkshell events, and member screenshots.
http://www.clanwind.com/ff11/

EmeraldMoon linkshell
Fairy server linkshell.
http://songo-2.webpark.pl

The Faithfull/Ensemble
Forum for the Ensemble linkshell on the Sylph server.
http://www.getphpbb.com/phpbb/index.php?mforum=thefaithfull

Gods Army
Member information, chat, forum, news and FAQs.
http://www.geocities.com/blivermore@sbcglobal.net/GodsArmy

Guardians of Balance
An Odin server linkshell with members of all levels which organizes missions, quests, and other groups for its members.
http://traykon.com/smf/

Linkshell Nephilim
Linkshell based on the Carbuncle server. Features linkshell member information, gameplay information, and a forum.
http://www.nephilim-x.com/

MidnightDreams
Late night SKY/HNM/Mission linkshell on the Odin server.
http://midnightdreams.nocoolname.com

MithraPride
Linkshell exclusively for Mithra on multiple servers. Site features a Vana'diel clock, airship schedule, screenshots, and a forum.
http://mithrapride.figarocastle.org/

Shadows Leviathan
End-game linkshell on the Leviathan server.
http://shadowsffxi.forumup.com/

Shards of Odin
Odin server linkshell site with member information, screenshots, and a forum.
http://www.shardsofodin.com/

Valor
Midgardsormr endgame linkshell site containing member information and a forum.
http://www.valor-online.org/

Windurst.org
AlphaPrime linkshell on Hades server. Site contains member journals, wikis, and a forum.
http://www.windurst.org/

Wolfwood Forum
Forum for Odin server linkshell.
http://p4.forumforfree.com/wolfwoodffxi.html