a pretty useful blog sharing tutorials, various freebies, and articles sharing theory and stuff to get inspired by. if you sign up for the mailing list, you get a collection of 2 gigabytes worth of freebies.

Good typography reference

idk bro its creative commons on wikipedia anything on here has a sharealike licence, but always check whatever your downloading just in case :9

an in-progress pixel art guide with a number of good pointers

Teaches a particular style of pixel art, but incredibly useful tips here also

Huge set of links related to art and drawing

An incredibly large showcase of logos. Great for reference material

An great article covering the basics of drawing, and recommending several books and other good resources online.