UI Movement - The best UI design inspiration, daily
The DesignOps Handbook by InVision - Guide to understanding how DesignOps help design teams scale
rFactor - rFactr provides social business solutions designed to produce tangible revenue, returns, and results for enterprise companies.
Design Principles - An open source repository of design principles and methods
Collect UI - Daily inspiration collected from #dailyui archive and beyond
Mind Map by RealtimeBoard - More than your average mind map