http://www.artcyclopedia.com/– An online Art Encyclopedia.
Artist Network – A community for artists that feature art magazines, how tos, video courses, and articles for inspiration.
The Art Story – Features Art Styles and Movements, Artsists, Timelines, Ideas & concepts, as well as news.
DeviantArt – DeviantArt is an online art community where students can share work, chat with others, get critiques, and sell work. The forums on this site are an excellent place to find jobs and more.
Digital Photography School – A site that aims to help photographers get the most out of their cameras. With sections including photo tips, gear and post-processing, all the essentials are well covered.
Lines and Colors – Notes and comments on visual art by Charley Paker. If it has lines and/or colors, it’s fair game.
Artist’s Proportion calculator – Enter the original size to get a chart of matching proportions.
Scale Conversion tool – Helps you scale up or down.
SitePoint – SitePoint offers various sections with research articles, web design tutorials and CSS, HTML tips. You will also find here courses and instructional videos (both – paid and free) as well as a cool developers community.
Tutorialized – Adobe Photoshop tutorials.
WeGraphics – WeGraphics is a creative studio specialized into the creation of graphic design resources. They provide high-quality products that subscribers can use in their commercial projects.
Word Hippo – Comprehensive thesauruas for synonyms and antonyms.