These are the 8 blog posts written on April 1 of any year. (Nearby: March 31 and April 2.)
2009:
Subjective-C #programming-languages
2007:
Ben’s Kirby cake #cakes
2006:
Google Circles #google
Web frameworks: RoR is the winner #django #python #ruby
2004:
GeOrkut density map #hacks #maps #online
2003:
Robustness Principle #architecture
TypeTool #typography
2002:
Old habits die hard #ides #me