Over the years I have been waiting for assets browsing in blender, still not there.
With assets browsing I mean: that you are able to see a thumbnail of your assets, than just drag that into the scene.
For Models, materials and so on.
https://wiki.blender.org/index.php/User:Elubie/AssetBrowser
I had this thread in 2015 : https://blenderartists.org/forum/showthread.php?359758-A-serious-need-for-Assets-browsing-amp-Material-library
so here we are in March 2017, still notting, well almost. The people at Microvellum manage to make blender assets browsing, working very nice, so can it be that hard?