Design Principles - An open source repository of design principles and methods
Checklist Design - The best UI and UX practices for production ready design.
Product Disrupt - A design student's list of resources to learn Product Design
moyo - Make your UX qualitative testing easier with moyo
The modern web design process - An in-depth guide to the processes behind great websites.
Business-Driven Digital Product Design - A guide on how to create influential user experience