The Sky

Ever wonder what the sky might look like at a certain time of day in a certain location?  Here's a good selection, and they're just beautiful.

http://ericcahan.com/portfolio/sky-series/

Carnovsky RGB Exhibition

Carnovsky is a Milan based collective presenting their show entitled "RGB" which showcases three color wallpapers.  Each of these pieces, when either a red, green, or blue light is on, shows a different set of images.

http://www.carnovsky.com/RGB_wallpapers.htm
http://www.designboom.com/weblog/cat/8/view/12317/carnovsky-rgb-exhibition-at-johanssen-gallery.html

Casey Reas

Casey Reas is an artist, programmer and designer based in LA who works with utilizing rule-based environments to create exciting pieces which, though utilizing the same code, can be different each time.  Exciting collaborations with various installation artists, and now printing 3d shapes based on his work.

Also, if you don't check out The Creators Project from time to time, you're missing out.

http://thecreatorsproject.com/creators/casey-reas