These are a list of Lego related sites. Members can add links here that are useful or helpful to the hobby we all seem to love. Moderators are welcome to edit and delete posts so that we have a well organized list. I'll start by adding 2 that are my favorite.

0937 - Portuguese forum
1000steine.de - German forum and news
Adventurers.dk - Adventurers fan site including reviews, MOCs, and database of characters and sets
BIONICLEstory.com - BIONICLE storyline information and short stories
BrickLink - Marketplace and reference catalog
Brickshelf - Galleries of MOCs, collections, and sets from thousands of fans
Brickset - News and reference catalog
Brickule
Brothers Brick - A LEGO Blog
BS01 - BIONICLESector01 - BIONICLE wiki
BZPower - BIONICLE news and forums
Castle World - Castle based story site
Classic Castle - The source for all your LEGO Castle needs--news, reference, collaboration standards, forums, and more!
Classic Space - LEGO space news and forums
Eurobricks - News, forums, and leaked set lists/pictures!
Exo-Force Network Exo-Force forum
FBTB - LEGO Star Wars news and forums
Find My Brick - Marketplace
Forbidden Cove - The source for all your LEGO Pirate needs--news, reference, forums, and more!
HispaLUG - Spanish forum
HOW MANY STUDS TO LEGOLAND - Japanese news site
Klocki - Adult Fan Site
LUGNET - News, database, and forums
Mecha Hub - Mecha and AMCP how-tos and MOCs
MCN - Minifig Customization Network--customs galleries, how-tos, and forums
MOCpages - MOCs from thousands of fans
Peeron - Reference catalog
Reasonably Clever - Comics, blog, contests, and more!
Saber-Scorpion's Lair - Saber-Scorpions personal web site with custom minifigs, MOCs, a decal store, forums, and more!

and of course The LEGO Company

Thanks to all the members that provided the links. More to follow.

Eurobricks should be added, and maybe FBTB.

Is it ok to add one that isn't Medieval?

Yes, for this topic, Non-Medieval ones are acceptible.

Ok then. Classic-Space is a good one too!

BZPower is a great BIONICLE fan site. BrickLink is a very large marketplace and nearly complete reference catalog of LEGO items. BrickShelf and MOCpages have thousands of images of other LEGO fans' MOCs, customs, collections, LEGO conventions, upcoming sets, etc.

-Dylan

Lets see, Brothers Brick and of course The Lego Company.

Minifig customization.

http://www.minifigcustoms.com/

Then there's always my brother's personal site:
http://www.saber-scorpion.com

I hope to make a personal site soon, too, where I can post all my LEGOs. But I guess I won't get to anytime soon.

Updated .....for now