The Startup Way - The new book from Eric Ries, author of The Lean Startup
GrowthHackList - 100+ curated growth hacks for makers + early stage startups
UI Playbook - The documented collection of UI components
UserInterface.io - Weekly UI/UX tips in your inbox for free
UIGiants - Show and find UX/UI design talents, not dribbble shots
Global Predictions PortfolioPilot - Intelligent portfolio management for self-directed investors