Graphic Design : The art of John K.
John Kricfalusi, the utterly insane creator of Ren & Stimpy, has a blog that discusses - and pretty much teaches - the art of animation. Fascinating stuff. And somewhat not safe for work. (via boingboing)
Also has a collection of various personal achievements and recommendations. Don't miss the intro to Troop Beverly Hills, the Ren & Stimpy clips, and the (obviously NSFW) pussies+tits+boners.