RonenBekerman.com is a helpful source of learning on all aspects of 3d architectural visualization. There you will find articles & tutorials about 3d modeling & 3d rendering with software such as 3ds max, Maya, Cinema 4D, Modo, SketchUP, V-Ray, Maxwell Render, Corona Renderer, Photoshop and more. In this link you will find 12 Postwork Style Architectural Visualization Tutorials that we would highly recommend you to visit !