On File Formats, Very Briefly, by Paul Ford · The Manual
A history lesson and a love letter to the early web, taking in HTML, Photoshop, and the web standards movement.
Those were long years, the years of drop-shadows. Everything was jumping just slightly off the screen. For a stretch it seemed that drop-shadows and thin vertical columns of text would define the web. That was before we learned that the web is really a medium to display slideshows, as many slideshows as possible, with banner ads.