The folks who’ve made things on the Internet since the 1990’s have had a kick out Zach Holman’s piece Only 90s Web Developers Remember This. For me, it was the 1×1.gif:
1×1.gif should have won a fucking Grammy. Or a Pulitzer. Or Most Improved, Third Grade Gym Class or something. It’s the most important achievement in computer science since the linked list. It’s not the future we deserved, but it’s the future we needed (until the box model fucked it all up).
All the things I’ve forgotten. Blink, deal with it.