Yarchive is Norman Yarvin's curated archive of technical Usenet discussions, organizing old posts on computing, electronics, physics, chemistry, aviation, bicycles, telephones, metalworking, food, houses, space, and other practical subjects.
Game Zero's Math Behind the Magic processor-design tutorial walks through half adders, incrementers, registers, buffers, RAM, ROM, buses, and an accumulator while assembling a tiny 4-bit CPU.
The old MS Word Sucks page captured a distinctly pre-social-media style of software rage: long, technical, profane, specific, and written by someone who had clearly fought the application for years.
Matt Sarnoff's 2008 Millitext experiment uses the red, green, and blue subpixels inside LCD pixels as separate drawing elements, producing text only a few millimeters tall and nearly invisible without magnification.
William T. Verts has maintained a hand-coded university homepage since the 1990s, complete with software, teaching material, technical notes, and almost no interest in modern Web fashion.
The Typing Injury FAQ gathered practical information about repetitive strain injuries, keyboards, pointing devices, speech recognition, furniture, software, and ergonomics in one durable reference site.
Kevin's old Blue Screen of Death gallery preserves airport kiosks, ATMs, billboards and other public computers failing in ways that were both embarrassing and weirdly memorable.