How to use the Sketchfab add-on for Blender — Blender Secrets
Fun with Sketchfab plugin in Blender, testing glTF performance - News - Castle Game Engine Forum
Fun with Sketchfab plugin in Blender, testing glTF performance - News - Castle Game Engine Forum
Animation translating poorly between Blender and Sketchfab (using duplicates of meshes and keyframed scales to emulate visibility) - Support - Sketchfab Forum
GitHub - sketchfab/blender-plugin
Sketchfab Importer add-on for Blender - Released Scripts and Themes - Blender Artists Community
Where's the EXPORT for Sketchfab's Blender 2.8 plugin - Bugs - Sketchfab Forum