3D model library

I was wondering if there is a user 3D model library. I already know about the 304 models in the Download section of the website and about ALICE but I’m wondering if there is a warehouse for 3D models that users make.

The reason I ask is that it seems like some people would like to share their work and others would like to use a model or two that they don’t have to build if they like the way someone else did it.

I imagine there could be some server space issues here but I thought I’d ask.

turbosquid.com
offers both free and non-free models in all kinds of formats