Douglas Engelbart archive.
Alan Kay talks, media, posts, Quora.
Viewpoints Research papers.
Yoshiki Ohshima videos.
Ann Marion videos.
Seymour Papert papers.
Cynthia Solomon memoirs.
Logo Foundation archive.
Andy Hertzfeld memoirs.
The Voyager Company videos 1, 2.
Kieran Egan archive.
Christopher Alexander books, texts.
Whole Earth Catalog archive.
Richard Hamming videos.
E. T. Jaynes papers.
David Hestenes archive.
Carver Mead website.
A. O. Barut self-field papers.
Oral histories: Caltech, CHM, CHF.
Computers: Bitsavers, Multics, HP, VLSI, Forth, Mac, a2, IIgs.
Explorables, concept visualizations, physical visualizations.