The Proceedings of the Athanasius Kircher Society (possibly the best name for a weblog, ever) has a history and images of Mundaneum, the Index Card Internet

(All of which seems quaint, but calls into question exactly how much of the world's knowledge is actually currently available to us now, on the web. There's the sense that if something doesn't have a URL, it's not real. If pressed, most people would admit that's not true, but people around me operate as if it's true in most cases. But check this Internet World Stats page (a marketing research site, but roughly similar to other sites I looked at). Penetration of the Internet by percentage is, well, non-ubiquitous. Around 70% in North America, 50% for Australia and associated countries, a little under 40% in Europe, and it drops after that (only 3.6% in Africa).)

[things magazine]