Here's my guide to the better forums out there:-
(click the links to open in a new window)
The biggest and most active Warhammer forum
warseer.comthis must be the most popular Warhammer forum. you'll get all the answers you need here. it's not as personal as some of the other smaller forums though.
Other big Warhammer forums
coolminiornot.coma great mixed bag, good for news, covers all the wargaming world
warhammer.org.uk
an excellent, busy forum of well-informed Warhammer gamers
librarium-online.com
a more mature forum, less busy but possibly better informed
dakkadakka.com
mainly 40k but covers general modelling & Fantasy too, very active posters
Smaller race specific forums
Bretonnia Forum
roundtable-bretonnia.orga superb forum for Brets - quite a lot of moderation so be careful
Beasts of Chaos Forum
z2.invisionfree.com/herdstone/index.phpI don't know much about this one, looks quite active - let me know
Chaos Dwarfs Forum
chaos-dwarfs.com/forum/Excellent Chaos Dwarfs forum and supporting site
Dark Elves Forum
druchii.net/index.php(thanks to chicagoterrainfactory.wordpress.com for finding this one)
Dwarfs Forum
bugmansbrewery.com/forumfull of character, active and knowledgable. good admin too.
High Elves Forum
z8.invisionfree.com/High_Elf_Forum/index.phpa somewhat quieter looking forum, plenty of posts and members though
Hordes of Chaos Forum
z7.invisionfree.com/wyrmling_x/index.phpthe Daemonic Legion - there seems to be some well connected posters here
Lizardmen Forum
pyramidvault.net/forumNicely themed and active looking forum - I've just joined myself :)
Ogre Kingdoms Forum
ogrestronghold.com/forumanother nicely themed and active forum
Orcs and Goblins Forum
x3.invisionfree.com/Orc__Goblin_Warpath/index.phpvery active forum linked to lots of other O&G resources
Skaven Forum
underempire.netcan you work out how to get into the underempire ? excellent forum
The Empire Forum
warhammer-empire.comone of the most active and very friendly indeed - one of my favourites
Tomb Kings Forum
z4.invisionfree.com/Khemrifairly small forum but the tactic threads are fairly active
Vampire Counts Forum
vampirecounts.netvery themed and suitably dark ! reasonably sized and very active
Wood Elves Forum
asrai.orgthe shortest link of all :) full of very experienced Wood Elf commanders.
Last but not least...
This site's forum to discuss this site and anything Warhammer related. It's the friendliest Warhammer forum there is !Battle Reporter Forum
battlereporter.freeforums.orgWe're new and quite small but welcome all new joiners with open arms :)
Phew, that took a while to type in ! I hope you find it useful. Let me know if there are any Warhammer Battle related forums you think I should add to the list.
Errata: some localised boards:-
US Warhammer Forums
US Mid-West Forumsiwfb.org/forums/index.php
small forum but actively updated.
wwhfb.com/forum/index.php
small-medium sized forum and active.