There are a whole heap of army specific forums, for instance: Wood Elves: http://www.asrai.org/ WoC: http://s4.zetaboards.com/cotec/index/ Tomb Kings: http://z4.invisionfree.com/Khemri/index.php? A quick google search should help you find any army specific forum you are looking for.
Lord @Scalenex to the rescue! Index of Lustria-Online's Counterparts I am a fan of the Bretonnian site, I have my Lustrian Bretonnians over there. Lots of good stuff on that website. Also a big fan of the Chaos Dwarf forum and the Ogre forum, lots of fantastic conversions. Agreed.
If you notice, the origin date when our handsome moderator created the sister site index predates when I joined the forum. It actually pre-dates when Scalenex became a moderator much like the 8th edition Tactica Index.
He also single handedly saved this site from extinction when our old patron couldn't afford to keep the site any more.
I think those guys might work for him... I believe he may run a website creation business..? (I'll have to go back and look at the first announcements.)
I am lucky enough to have talented people working for me, and the possibility to have them work on this site during slow periods. Though, the community would not be here today if it was not for you guys! Without people using the forum, we would not be a community, just a fancy forum