This is intended to be a list of forums and tutorials. If you have any links post them in this thread with a quick description and i will include them in this list.
- mapping forum
- mapping and modelling with blender.
- this site belongs to donkey, who makes amazing high detail maps. there are some great gtkradiant tutorials.
cardigan's powder room
- another great mapper. check out the tutorials in top tips.
- character modelling forum.
- a forum for subdivision modelling.
- gpl quake3 content forum.
- general doom3 content forum.