Strange Book Covers
Lots of great artwork of weird monsters and other disturbing and peculiar imagery on the covers of various books at this site. Here's links to some of my favorite covers.
Slimer and Shock 2
Valley Of The Worm
Clark Ashton Smith Covers
The "Planet Of Terror" cover by Basil Wolverton, which is the first pic on the left is great. I love artwork that shows landscapes that define weird faces.
And check out the February 1995 issue (right panel) of Nomo.