A privately owned website run by Kenneth A. Kuhn, an amateur historian, documenting the technical history of Hewlett-Packard test equipment, calculators, and computing products, drawn from his personal collection of over 450 vintage HP items, catalogs, manuals, and Hewlett-Packard Journals. The site also curates links to other HP history websites. It is not affiliated with Hewlett-Packard, Agilent Technologies, or Keysight Technologies.

Multicians.org is a volunteer-run archive documenting the history of the Multics time-sharing operating system, contributed to by former Multics developers and users. It hosts hundreds of HTML pages, PDFs, and images covering Multics history, biographies of Multicians, technical papers, myths, and a site timeline, and links to an open-source Multics simulator hosted at MIT. Content is community-contributed, with corrections and anecdotes invited from Multicians worldwide.

A plain-text chronology of digital computing machines from antiquity through 1952, originally compiled and posted to Usenet by Mark Brader and later mirrored on the web by another maintainer. It traces key developments (ABC, Z3, ENIAC, SSEC, Manchester Baby, EDSAC) and discusses the difficulty of naming a single 'first computer,' citing books by Augarten, Williams, Zuse, and others as sources. The document is maintained as a public-domain reference rather than an institutional archive.

A personal website by Dan Mathias showcasing his private collection of vintage computers, processors, and computing memorabilia, including systems like the IMSAI 8080, Intel Paragon supercomputer, Cray-3 processor board, and various early microprocessors and home computers. The site features photos and personal anecdotes about acquiring, restoring, and using these machines, along with historical notes on specific processors and systems. It functions as an informal hobbyist showcase rather than a curated scholarly resource.

Progopedia is a free, wiki-style web encyclopedia of programming languages, licensed under the GNU Free Documentation License, edited by registered volunteer contributors. It catalogs entries for languages, dialects, implementations, and versions (currently over a hundred languages and hundreds of implementations/versions), along with example programs like Hello World, Fibonacci, and Factorial in many languages. As a young, community-editable project, its coverage is uneven and expands as volunteers contribute articles.

A website created by the late Tony Sale documenting the history, science, and engineering of WWII cryptanalysis, including the Colossus computer, Enigma machine, and Lorenz cipher system at Bletchley Park. It hosts simulators, lecture notes, rebuild documentation for Colossus, and original wartime documents such as the Newmanry History and Bletchley Park Cryptographic Dictionary. The site also covers Tony Sale's involvement in saving and reconstructing Bletchley Park as a museum.

A detailed timeline database of the history of visual effects, computer graphics, CGI, and computer animation, compiled by Barbara Flueckiger, a film studies professor at the University of Zurich, based on research funded by the Swiss National Science Foundation. The searchable database catalogs entries by category (animation, compositing, computer development, modeling, motion capture, rendering, shading) spanning from the 17th century mechanical calculators through modern computer graphics milestones, listing technologies, persons, companies/institutions, and associated films or publications. A downloadable PDF version of the table is also offered.

A personal academic web page created by researcher Jürgen Schmidhuber documenting Konrad Zuse's contributions to early computing, including the Z1, Z3, and Z4 machines and the Plankalkuel programming language. It situates Zuse's work in the broader history of computing relative to Babbage, Atanasoff, Aiken, and Turing, with links to essays, correspondence, and an online archive of Zuse's writings and machine images. The page is maintained as part of Schmidhuber's personal site rather than an institutional archive.

History of SPARC systems from 1987 to 2010, documenting Sun Microsystems' SPARC processor architecture and the workstations and servers that used it.

Tracing milestones from 30,000 BCE through 2010, this timeline of Information Exchange Technology by T. Matthew Ciolek includes computing, networking, and communications.