Really Good UX - A library of screenshots for UX inspiration
Checklist Design - The best UI and UX practices for production ready design.
Usability.gov - Resource for user experience (UX) best practices & guides
UX Design Weekly - The best user experience links each week to your inbox
UX Check - Easy heuristic evaluations on your website (chrome ext.)
moyo - Make your UX qualitative testing easier with moyo