I know this ain't imageboard culture, but imageboards are secondary to 2ch-type forums anyway.

http://dis.4chan.org/dis/ - 5 boards full of 4chan retards. I'm trying to improve it with FORCED_ANON, but they tend to rebel against it so it's going slowly.
http://bbs.shii.org/ and friends - 5 very slow-moving boards, but a success in being my personal note drop-off space :v
http://4-ch.net/ - 10 boards, nothing there right now. Probably becoming the next world2ch. Speaking of which,
http://world2ch.net/ - Roughly 60 boards or so, R.I.P.

>but imageboards are secondary to 2ch-type forums anyway.

Not so much 'secondary' as 'spawned from'

Why did world2ch die anyway?

http://35c.jp

>>4

From 4chan:

> Stupid-ass sixteen year-old admin of that site (RIR6) screwed with the code and broke all of the boards. At the end, it was kind of a secret that you could see the image boards there even if everything else is broken. People started posting some horrible stuff on those boards. I seriously wonder if RIR6 didn't catch some legal flack for that. It got pretty bad...

http://www.mackfilms.com/

http://earth.prohosting.com/rabicat/chibi/index.html

http://www.ihurtnow.com/numbat/bbs/

http://www.world4ch.org/ ololololol

http://haibane.info/

http://andrewlb.com/bbs/

https://uio7ucmgt6uzwccn.onion/

http://cacti.nekoarc.net/