CameraSim simulates a digital SLR camera - SLR Photography Demystified

http://camerasim.com/camera-simulator/

Modkit: a simple graphical programming system for Arduinos and other microcontrollers - Boing Boing

http://boingboing.net/2012/05/28/modkit-a-simple-graphical-pro.html

Security researcher: I found secret reprogramming backdoors in Chinese microprocessors - Boing Boing

http://boingboing.net/2012/05/28/security-researcher-i-found-s.html

Bottle Cap Blues, Video Shows Unique Ways to Open Bottles of Beer

http://laughingsquid.com/bottle-cap-blues-video-shows-unique-ways-to-open-bottles-of-beer/

Makey Makey, A Kit for Connecting Everyday Objects to a Computer

http://laughingsquid.com/makey-makey-a-kit-for-connecting-everyday-objects-to-a-computer/

Why great ideas come when you aren’t trying : Nature News & Comment

http://www.nature.com/news/why-great-ideas-come-when-you-aren-t-trying-1.10678

It's Okay To Be Smart • An Ant Ballet, Choreographed By Pheromones Ants...

http://www.itsokaytobesmart.com/post/23635147982/ant-ballet-pheromones
Cool! I saw a talk given by this chap at Dorkbot a few months back.
Very entertaing
(this via Missing Links)

http://www.milkandcookies.com/link/304677/detail/

Portishead vs Blondie vs Kanye West - Sour Glass | MilkandCookies

http://www.milkandcookies.com/link/304677/detail/

Mapping the motor cortex - Hack a Day

http://hackaday.com/2012/05/14/mapping-the-motor-cortex/

Getting started with OpenCV - Hack a Day

http://hackaday.com/2012/05/13/getting-started-with-opencv/

Easter island heads have bodies!?? | Thinkbox

http://www.thethinkbox.ca/2012/05/10/easter-island-heads-have-bodies/

Darwin's Creepiest Experiment Brought Back to Life | Wired Science | Wired.com

http://www.wired.com/wiredscience/2012/05/st_darwinfaces/

How Many People Are In Space Right Now?

http://www.howmanypeopleareinspacerightnow.com/

Your guide to building a homebrew 6502 computer - Hack a Day

http://hackaday.com/2012/05/10/your-guide-to-building-a-homebrew-6502-computer/

Tubewalker: The Tube, on Foot

http://www.tubewalker.com/
Cool apps, too!

Approximations

http://imgs.xkcd.com/comics/approximations.png