There are a few more poser and Daz artists around that are noteworthy for process stuff. For animations there's obviously:
:
http://0-the-leviathan-0.deviantart.com/ and the less well known but equally impressive
:
http://ovidius-naso.deviantart.com/
for stills there's
:
http://timewyrm.deviantart.com/
:
http://titaneer.deviantart.com/
:
http://yunners.deviantart.com/
and if you don't mind seeing the same scenes, character's and poses half a million times there's :
http://nightmarehero.deviantart.com/
Also, if you're looking for videos, I'd recommended dailymotion over youtube for searches.