http://en.wikipedia.org/wiki/Knitta_Please Knitta Please is a group of knitting graffiti artists.

http://nymag.com/news/intelligencer/56941/ A shocking way to avoid wrinkles!

http://www.youtube.com/watch?feature=player_embedded&v=mvtLk4i6TmY It's a machine that sorts Skittles.

http://www.quora.com/Future-of-Technology/Will-it-ever-be-possible-to-control-the-weather A Quora question on how the weather is controlled around the world.

http://lcamtuf.coredump.cx/gcnc/ A very comprehensive introduction to the world of home CNC machining, mold making and resin casting.

http://ipsur.org/ An introductory textbook to statistics and the R programming language.

http://blog.backblaze.com/2012/10/09/backblaze_drive_farming/ The story of how one company dealt with a worldwide hard drive shortage.

http://dyslexicfonts.com/ A font designed to help dyslexics read.

http://fd-imaging.com/the-worlds-tiniest-tiff-image/ This TIFF actually displays itself as a black and white bitmap.

http://abduzeedo.com/clever-google-maps-manipulations-christoph-niemann Clever art drawn in the style of Google Maps. I think this really shows off how well-made the Google Maps design language is.