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
Gainy - Stock market portfolio
400+ Ultimate UX Resource Pack - Curated resources to enhance your UX skills and knowledge