Ultima Online
-The official webpage. Very informative.
Ultima Online Europe
-The official europe webpage.
Ultima Online Boards
-The official boards.
Ultima Online: Lord Blackthorn's Revenge
-The official site for Ultima Online: Lord Blackthorn's Revenge add-on.
Ultima Online: Third Dawn
-The official site for Ultima Online: Third Dawn add-on.

Ultima Online News

Ultima Online Stratics
-The biggest Ultima related news site.
UO Vault
-Ultima Online news and comments.
Crossroads of Britannia
-Ultima Online news and comments.
The Black Dagger
-Ultima Online news and comments.
The Black Staff
-Ultima Online news and comments.
Markee Dragon's Ultima news
-Ultima Online news and comments.

Skill related trades

The Fishing Council of Britannia
-Everything you want to know about fishing.
The Taming Archive
-Anything Taming related.

Useful tools

InsideUO
-Have you ever wanted to peek inside UO art and sound files? Here is your chance...
UOSU
-Ultima Online Screenshot Utility.

The Legend of Ultima

Ultima Web Archive
-Official archive of the legend of Ultima.
Ultima Graphics and Pictures
-Official Graphic archive of the legend of Ultima.

Ultima I - The legend Reborn
-A freeware project to make new Ultima I.
Ultima II & III - The Exodus project
-Upgrade to Ultima II and Ultima III to modern computers.
Ultima IV - The Dawn of Virtue
-Remake of Ultima IV.
Ultima V - Lazarus
-A remake of Ultima V.
Ultima VI: Prophecy
-A remake of Ultima VI, especially the gallery page is worth of seeing.
Ultima VII - Exult
-A project to create an Ultima 7 game engine that runs on modern operating systems.
Ultima IX: Ascension
-The Offical site for Ultima IX.

New World Arbalest
-Crossbow shop of David R. Watson, who is also known as Iolo.
Denis Loubet's Homepage
-The homepage of Illustrator and artist behind many Ultimas.

Ultima Dragons
-A social club on the Internet whose members share a common interest: the Ultima series
Fans for Ultima
-Information of all Ultima Prime games.
The Wayward Avatar
-Ultima news and hints.
Mysterious Sosaria
-The Best Ultima music archive there is as far as I know. It has lovely graphics too.(is not updated anymore)
Ultima Resource Library
-A lot of Ultima information, worth of reading if you want to learn more about world of Ultima.
Underworld Dragon's Notable Ultima
-Includes a lot of information about the Ultima series history, literature and more.
The tale of Captain Johne
-A novel, made by an Ultima fan, which takes place before the events of Ultima V.

Ultima Worlds Online: Origin
-The official now canceled project webpage.
UWO:Origin Stratics
-Fansite of the Canceled Ultima project.
Crossroads of New Britannia
-Fansite of the Canceled Ultima project.
Markee Dragon's Ultima news
-Fansite of the Canceled Ultima project.
World-Gaming network
-Fansite of the Canceled Ultima project.
Ultima Haven
-Fansite of the Canceled Ultima project.
Ultima Online 2 Archives
-Fansite of the Canceled Ultima project.

Portrait services

Arakasi's character portraits
-Character artist on Great Lakes, extreamly talented with colors.
Cross Minded: Art Works of Daniel Chou
-Character portraits.
Ways of the World (of Carde of Skara Brae)
-Most excellent art by Carde, grand character portraits.
Lord Syrus' Character Sketches
-Character portraits.

Art

Ciruelo Cabral Official Website
-Gallery
Denis Loubet's Gallery
-Denis Loubet is a Origin/Ultima veteran, who has been artist in numberous projects.
Dzeron Dragon
-Gallery (used to have Character portraits).
Fantasy Art of Elfwood
-Amazing resource for truely fantastic art to see (not to take without permission)
Lockwood
-Gallery
The Spiderwebart Gallery
-The Gallery is owned by artist Greg Hildebrandt. Greg's career in art with his brother Tim Hildebrandt spans over 40 years, which includes the original cover of UO.
Ultima Online Rendels
-Rendeled pictures of Ultima Online houses.

Useful sites for role-players

Regia Anglorum
-Listing of A LOT of Medieval information.
RPG Vault
-Latest news of Computer RPGs.
Roleplaying 101
-A guide to roleplaying, hosted by Stratics.
Stratic's Roleplaying guide
-A guide how to roleplay at Stratics.
D&D Aligment test
-Test your character's aligment.
D&D Name Generator
-Helps you to create a name for your character.
D&D Nostalgy
-Old D&D adventures for free.
The Turbulent Waters
-A lot about boats, if not everything?
Shakespearean Insulter
-Just what the link says, if you want to insult thy opponent, read this and do it right!
Heromachine
-Your very own character/portrait generator.
Origin Museum
-"A resource for collectors, and as a display forum for all things Origin".
Elfquest
-The long told story of elves by Wendy and Richard Pini, the original ones are one of the best fantasy comics I know.