and 0.gif (fewer characters!) bring back memories. What I miss most was the hacky tricks you'd have to put together to get load times down on dialup. Carefully controlling the order in which things rendered. Early DHTML. Slicing layouts so that as much as humanly possible the images repeated. Tables tables tables. IFrames that talked to each other. The javascript that converted <div>s to <layers> for netscape.
In those days I was certain there would be a complete replacement for HTML/JavaScript/CSS that would take over. Flash came and went. Silverlight was a lovely attempt. We just kept layering lipstick on our pig :).