Ramsophone - A generative art/music machine. (Be sure to refresh!)
WikiArt - The Encyclopedia of Fine Art
Generative Art in Go - Learn the basics of algorithmic art with the Go language
Artspace - Art platform to discover and buy contemporary art.
Playform - Harness the power of artificial intelligence to expand your imagination and productivity, without learning how to code.
Artboost - Artboost is an art marketplace.