How to Import Wavefront OBJ files in Sketchup (free) - YouTube
Simlab 3D Plugins - OBJ importer for SketchUp
Huzzaz - How to import .obj file in Sketchup 'Free'
How to import and export between Sketchup and Blender - Artisticrender.com
Revit Imports How to use a Sketchup Model in Revit – PlusSpec
pjtips on Twitter: "It IS possible to get models out of sketchup and in to Clip Studio, but you have to go through Blender. You don't need to be an expert, but