- Walk Through Time, A
 - The evolution of time measurement, from the National Institute of Standards and Technology. - Greatest Engineering Achievements of the 20th Century
- The top twenty achievements in terms of their impact on the quality of life, chosen by the National Academy of Engineering and its collaborators.
- theplumber.com
- Includes a history of plumbing from Babylonia to the USA, links, FAQ, and email the plumber a question.
- Welcome To ... Histories
- Features the chronology of hyper complex numbers and electromagnetic theory.
- James Burke's KnowledgeWeb (K-Web) Project
- Theorizes that everything in history--every event, every technology--came about because of something or someone that preceded it.
- Making the Modern World
- Multimedia exhibit tracing how the Industrial Revolution transformed our world, and how it is still transforming today. Includes stories, timelines, and learning modules about science and invention from the 18th century to the present.
- Retro Thing
- The independent guide to vintage technology.
- Museum of Retro Technology
- Features descriptions and images of historical technological wonders in the fields of communications, transport, and power generation.
- Vintage Technology
- Historical information and images of home electrical goods from the 20th century.
- Rothschild Petersen Patent Model Museum
- Privately owned collection of United States patent models and related documents.
- Comptometer: Biography of a Machine
- Offers a history of the Comptometer, the first practical calculating machine invted by Dorr Eugene Felt in the late 1880s.
- ASME History and Heritage Landmarks Roster
- Lists mechanical engineering landmarks, heritage sites, and collections recognised by the ASME.
- Devine Time
- Interactive journey through history focusing on inventions and technology.
- Mechanical Marvels of the Nineteenth Century
- Illustrated accounts and history of robots in the Victorian era 1865-1893.
- John Harrison and the Longitude Problem
- The story behind the manufacture of John Harrison's marine timekeepers, which allowed early sailors to establish their longitude. Presented by the Royal Observatory in Greenwich.
- Darwin-L Archives
- Professional discussion group on the history and theory of the historical sciences.
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