The CG industry suddenly finds itself good at sharing. This is a welcome change from the closed door development of the 90's when everything was too "cutting edge" to be absorbed by mere mortal eyes without a stack of NDA's and a threat or two. I try to contribute to the forums of the software I'm most interested in and have added this section to my website with the intention of someday putting something useful in here. No NDA's required.

josh buck zbrush sketchbook
<-- My Zbrush Sketchbook. I post most of my sculpting work up here along with works in progress and some details about how things were done. Zbrush is a fine application with an excellent community. If you're just getting started with it I highly recommend frequenting the forums and studying the amazing work people have done.
unity 3d forums
<-- The Unity 3D game engine forums. I post here often along with many other professionals along with people just getting started with this easy to use game engine. Not that any game engine is easy to use.