links for 2007-04-05

• Total Validator :: Firefox Add-ons
  Provides true HTML validation (HTML 2.0 to XHTML 1.1) using the official DTDs, also performs accessibility validation (WCAG, US-508), broken link checking, spell checking, and takes screenshots using 26 browsers on Windows, Linux, and OS/X.
  (tags: firefox extension validation html xhtml tidy htmltidy accessibility screencapture)
• Tab Mix Plus :: Firefox Add-ons
  extends firefox tabbing
  (tags: extension firefox tabmix)
• nintendo8.com – play Nintendo 8-bit games online (no download required)
  The Greatest 8 bit Nintendo Games of All Times – Playable Directly In Your Browser. The current top ten list: Super Mario Brothers; Super Mario Brothers 3; Teenage Mutant Ninja Turtles 2; Tetris; Legend Of Zelda; 1942; Double Dragon; Bubble Bobble; Super
  (tags: emulator games nintendo online retro videogames emu)
• The Happiness Project
  about a year spent test-driving principles, tips, theories, and scientific studies on happiness
  (tags: interesting psychology lifehacks blog happiness daily)
• instructables : DIY Photobooth
  combine a computer, camera, and printer to build your own modern-day photo booth
  (tags: diy flickr howto photo photos photobooth photography todo)
• photoboof.com :: Index
  much more on the build-your-own-photobooth front
  (tags: diy photo photobooth projects research Photography Forum photoboof)