Recommended
Unfamiliar
Not Recommended
Booklets - Hundreds of booklets on design, business, freelancing & more
Design Modo - Articles, tutorials and industry news about trends and techniques
Interaction Design Foundation - Good for industry news
Medium - Industry news and trends, with very infrequent posts. Fast Company is mainly a design and business journal with high factual reporting* from Media Bias/Fact Check
Nielsen Norman Group - Good for industry news
Optimizely Glossary - Engineering, product and marketing glossary
Praxent's UX Design Guide - Guide to UX and design thinking for students and kids
Smashing Magazine - Good for front-end web design and development
Usability.gov - UX resources, learn how to improve user experiences
UX Movement - Don’t really like their interface but there are some good articles
UX Passion - Good for industry news
UX Trends - Trends report
Don’t Make Me Think (3rd Edition) - Human–computer interaction, web usability, UX design, and content strategy. Highly acclaimed. By Steve Krug
Human Computer Interaction (3rd edition download) - Discusses HCI, interaction design, and usability. Tips to design on usable computing devices. Ongoing development of the 4th edition book can be found at this this website. By Alan Dix et al.
Information Architecture for the Web and Beyond - by Louis Rosenfeld, Peter Morville, Jorge Arango
The Design of Everyday Things - How design allows users and objects/products to communicate, how to optimize that communication, and how to create good user experiences. By Don Norman
Understanding Your Users - User requirements, methods, tools, and techniques. By Catherine Courage & Kathy Baxter