DevDojo - Dev tools and resources for building awesome stuff
UX Flow Wireframe Prototyping System - Create beautiful user flows prototypes for your next project
UX Recipe - Checklist to discover your next UX project tools/techniques
React Proto - React application design and prototyping tool
UXsniff - Track user behavior on your website and improve conversions with UXsniff: the user experience watchdog that looks out for you.
Balsamiq Mockups 3 - New public beta for the popular prototyping tool