Richard, you might also have added a para or two on the early ’90s search engines, such as Gopher (toth UMinnesota).

I remember the small celebration when there were actually a hundred Gopher sites that could be accessed. Eventually it was a thousand, and Archie came along to Gopher the Gopher sites, followed by Veronica with the same function at a higher level.

All of those early engines were ftp-based. It was Mosaic that seemed to launch the shift to documents living exclusively on the web instead of files living in a computer and transferred across the web to another computer.