A List Apart is a long-running online magazine providing in-depth articles on web design, development, content strategy, and best practices for web professionals.

WebDesign.org is a free resource offering web design tutorials, articles, interviews, showcases, and free design resources for aspiring and professional web developers and designers.

Wellstyled provides articles, tips, and tools covering UX design, web design, HTML, CSS, and JavaScript frameworks for web professionals.

Webcrunch is a publication and resource hub offering high-quality, long-form tutorials, screencasts, and collections for independent web developers, designers, and makers focused on modern web tech.

The HTML Primer provides a comprehensive, wiki-like HTML and CSS tutorials. The site is regularly updated with web design articles and blog posts by the editors.