Sketchucation - Sketchucation is a 3D SketchUp Community for students, professionals, designers, and hobbyists.
CGTrader - CGTrader is an online marketplace at which artists can sell and buy Revit and 3D models.
CGTips - CGTips is a 3D Architectural Visualization learning platform for Architects or interior designers to build their skills in an interactive way.
RigModels.com - Free 3D Search Engine. Explore & download 3d models for free. Rig & Animate static models easily.
Arroway-textures.ch - Arroway-textures.ch is an online repository of high-quality digital textures and 3D assets that helps you add them to your own 3D-content libraries and projects.
3DOcean - 3D Models & Accessories From $1 for 3D Models, Textures, Materials & Shaders, 2D Concepts...