Sketchup (version 6 is out now!)	Homepage of the Sketchup 3D design program.
	3D Warehouse	Homepage of the Google Sketchup 3D Warehouse for free models and components.
	Sketchup 3D Challenge	Homepage of the Google Sketchup 3D Challenges. Each week a new design challenge using Sketchup.
	SuWiki	Homepage of the Sketchup Wikipedia. Here you can find tutorials, plugins, tips & tricks, links and much more.
	SketchUcation	Great website with a lot of video tutorials on various subjects related to designing in Sketchup.
	Smustard.com	Great website for free and paid scripts for Sketchup.
	SU Podium	A small render plugin voor sketchup.
	Kerkythea	Homepage of the Kerkythea rendering system.