InDesign Secrets "features thousands of tips, techniques, and tutorials by top experts, the widest-circulation InDesign podcast, a leading industry forum, a weekly InDesign Tip of the Week newsletter, and rich resources for every InDesign user."
ScreenPrinting magazine "has served the specialty graphics industry for more than 65 years as the leading publication and trusted source of information for the screen-printing industry. Screen Printing provides a diverse group of commercial and industrial screen printers with landmark coverage of the latest techniques and technologies to enhance their processes and cutting-edge updates on trends, management strategies, and more."
The University of Minnesota has a page dedicated to web design references that includes links to information about typography, accessibility, HTML, CSS, standards, and more.