hardware

http://ntpi.openchaos.org/pps_pi/ Creating a GPS-backed NTP server on a Raspberry Pi.

http://www.cbp.gov/linkhandler/cgov/trade/legal/informed_compliance_pubs/icp013.ctt/icp013.pdf The Federal Government's official document on distinguishing bolts from screws.

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

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

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

http://www.networkworld.com/community/blog/earliest-known-photos-apple-ipad-prototype?page=0%2C1 Here are some pictures of the earliest iPad prototypes.

http://www.asymco.com/2012/04/02/android-economics/ Google makes more from iPhone services than they do from Android phones.

http://byuu.org/articles/emulation/snes-coprocessors All of the coprocessors released with SNES games have been reverse engineered.

http://www.deepdarc.com/2010/11/27/hacking-christmas-lights/ This guy reverse engineered these Christmas lights and published a guide on programming them. They're kinda expensive but otherwise a really nifty Christmas decoration.

http://rossum.posterous.com/a-little-atari-810-disk-drive It's not just a tiny flash drive, the creator made a tiny PCB and case to make this work.