Behind You
https://thehairsonthebackofyourneck.tumblr.com/
The art of Brian Coldrick. This particular series has you staring at animated artworks, waiting to see the spookiness within the darkest edges of each image. It’s a very cool concept that makes you want to flip to the next panel every time.
The Fantastic in Art and Fiction
http://fantastic.library.cornell.edu/index.php
An archived site by the Cornell Institute of Digital Collections featuring historical art of the grotesque, the bizarre, and the obscene. A truly fascinating site to browse while mulling over a hot cider and contemplating your next horror project.