CG Talk
Cgtalk, the cgsociety's official forum for digital artists
http://www.cgtalk.com/
Bryce/Poser Forum
Bryce/Poser Forum
http://nbpf.3dart4u.com/
Animator forums
Animator forums
http://forums.flippinpictures.com/
3d-4u2
3d-4u2 offers multi-user possibilities in virtual 3d environments on the internet
http://www.3d-4u2.com/
Concept Design Forum
Concept Design Forum
http://www.conceptdesignforum.com/
DigitalWork.nl
Digitalwork.nl
http://www.digitalwork.nl/
The 3D Studio Forum
The 3D Studio Forum
http://the3dstudio.com/forum/
SwiftDev.com
Swiftdev the largest swift 3d resource on the planet! tutorials, galleries, expert help with the ever popular swift 3d.
http://www.swiftdev.com/
Smootsy
Smootsy
http://www.smootsy.com/
Threedy
This is a 3d-animation and art discussion forum powered by vbulletin.
http://www.threedy.com/