Browse Entries - I
- IEEE Annals of the History of Computing (1979 - )
- Imaginary Magnitude (2003 - ), Gustav Holmberg
- Imago Mundi Ltd.
- Imago Mundi: A Review of Early Cartography (1935 - )
- In Retrospect: History of the Sciences and Humanities (2007 - )
- Index of Prohibited Books from the Roman Office of the Inquisition, 1559, Michael Scheifler
- Indian Journal of History of Science (1966 - )
- Indian National Science Academy
- Indiana University
- Information about alchemical books and manuscripts, Adam McLean
- Ingenious: Images in Science and Culture (2003 - )
- Institute of Electrical and Electronics Engineers, Inc.
- Institutui Editoriale e Poligrafici Internazionali
- Instruments for Science, 1800-1914: Scientific Trade Catalogs in Smithsonian Collections (2003 - ), Steven Turner & Jim Roan
- Interactive History of Earth Sciences, 1998
- International Astronomical Union (C41/ICHA)
- International Commission on the History of Mathematics (ICHM)
- International Commission on the History of Meteorology
- International Journal of Naval History, Gary Weir, Howard Fuller, editors.
- International Society for History, Philosophy, and Social Studies of Biology
- International Society for the History of East Asian Science, Technology and Medicine
- International Society for the History of the Neurosciences
- International Society for the History of the Neurosciences (ISHN)
- International Union of History and Philosophy of Science, Division of History of Science and Technology, XXIII International Congress of History of Science and Technology: Ideas and Instruments in Social Context (2009)
- International Union of History and Philosophy of Science, Division of History of Science, XXII International Congress of History of Science: Globilization and Diversity: Diffusion of Science and Technology Throughout History (2005)
- International Union of Soil Sciences Newsletter
- International Wildlife Museum
- The Internet Encyclopedia of Philosophy (IEP) (1995 - )
- Intute--History of Science
- Isaac Newton: Theology, Prophecy, Science, and Religion, Stephen David Snobelen
- Isis Current Bibliography of the History of Science
- Isis: International Review Devoted to the History of Science and Its Cultural Influences (1912 - )
- Islamic Astronomers from the Biographical Encyclopedia of Astronomers (2007 - )