The blog of Robyn Miller, creator of Myst. He hasn't updated it since September, though.
A devotee of 50's and 60s advertising shares scans from his very extensive archives.
The Woodring Monitor
Jim Woodring does these really intricate drawings and woodcuts of crazy creatures in this totally surreal world. It's like that Disney cartoon that Salvador Dali worked on.
One of the top blogs, Needled is about tattooing issues, written by a tattoed lady lawyer who's, like, hot. There's a new design up that makes this more than just a blog, it's a great tattoo reference.
The author of Today's Inspiration talks about his personal work and his process. Not updated since March.