CG Cookie - New in Blender 3.0: the long awaited Asset Browser! ✓ currently only supports objects, materials, poses, and worlds ✓ you can drag & drop assets into any scene ✓
ArtStation - Blender asset browser materials - 5
Material Library VX Free Add-on for Blender || Procedural Material - YouTube
What's New in Blender 2.81? All the Big Changes and Updates - Learn Blender | Online 3D tutorials with CG Cookie
Drag and Drop materials with the Asset Browser (Blender 3.0) : r/blenderTutorials
Asset Browser Project Update — Blender Developers Blog
NEW Asset Browser Is Awesome | Blender 3.0 - YouTube