Museum of the History of Science, University of Oxford
Library calalog, image library, and numerous virtual exhibits available online.
http://www.mhs.ox.ac.uk/

Internet Modern History Sourcebook: Scientific Revolution
Primary sourcebook intended to serve the needs of teachers and students in college survey courses in modern European history and American history.
http://www.fordham.edu/halsall/mod/modsbook09.html

Ancient Greek Science
Learn about the scientists of ancient Greece, what they have contributed to science, and information about their background.
http://www.angelfire.com/ca5/ancientgreecescience/

The History and Philosophy of Science, Technology and Medicine
Long list of internet resources in the field of the history of science.
http://galileo.imss.firenze.it/~tsettle/index.html

International Society for the History of Philosophy of Science - HOPOS
Promote serious, scholarly research on the history of the philosophy of science. Includes news and events.
http://scistud.umkc.edu/hopos/

History of Russian Science
Virtual guide which includes article archives, bibliography, journals, institutiona and news.
http://web.mit.edu/slava/guide/

Institute and Museum of History of Science - Florence, Italy
The museum and web site are particularly rich resources for the life and work of Galileo.
http://galileo.imss.firenze.it/

Internet for History and Philosophy of Science
A free "teach yourself" tutorial on Internet information skills for historians and philosophers of science.
http://www.humbul.ac.uk/vts/hps/

Internet History of Science Sourcebook
Links to documents and Web resources pertaining to the history of science including original texts from great scientific thinkers.
http://www.fordham.edu/halsall/science/sciencesbook.html

Echo Science and Technology Virtual Center
Annotated catalogue of history of science, technology, and medicine resources.
http://echo.gmu.edu/

History of Salt
Sodium chloride in history, with many links to further relevant material. From the Salt Institute.
http://www.saltinstitute.org/38.html

H-Net Child
History of Childhood and Youth
http://www.h-net.msu.edu/~child/

Reviews of History of Science books
Reviews, by Danny Yee, of a range of books on the history of science, mostly popular titles.
http://dannyreviews.com/s/history_of_science.html

International Commission on History of Meteorology
Information about the commission and about meetings discussion the history of meteorology.
http://www.colby.edu/ichm/

History of Optics
Timeline of optical discoveries and theories, from Euclid to the laser.
http://members.aol.com/WSRNet/D1/hist.htm

History of Science and Ethics Internet Resources
Links to museums, historical instruments galleries, electronic publications, papers, e-mail groups and books
http://www.lib.lsu.edu/sci/chem/internet/history.html

Faith and Reason.
On the historical interactions of science and religion. (From PBS.)
http://www.pbs.org/faithandreason/intro/histo-body.html

Daylight Saving Time
History from Benjamin Franklin to the present. U.S. law and practice. Worldwide time change dates.
http://webexhibits.org/daylightsaving/

The Evolution of the Conservation Movement, 1850-1920
Documents the historical formation and cultural foundations of the movement to conserve and protect America's natural heritage.
http://memory.loc.gov/ammem/amrvhtml/conshome.html

A Science and Technology Odyssey
Timeline of the history of science and technology from 20,000 BC to 1800.
http://www.science-ebooks.com/timeline

Epact: Scientific Instruments of Medieval and Renaissance Europe
Online database of medieval and Renaissance scientific instruments made before 1600 A.D. held at four European museums.
http://www.mhs.ox.ac.uk/epact/

Birr Castle Demesne
A science museum in Ireland devoted to the astronomical, engineering botantical and photographical work of the Parsons family.
http://www.birrcastle.com/

The Scientific Revolution
Study guide which includes timelines, biographies, glossaries, diagrams, bibliographies, and original research.
http://web.clas.ufl.edu/users/rhatch/pages/03-Sci-Rev/SCI-REV-Home/

Philosophy, Science and Technology in India
History of rational philosophy, scientific method, epistomology and technology in ancient India.
http://india_resource.tripod.com/indianhistory.html

Science Timeline
A chronology from the 7th millennium BC to the present day, with brief explanations of events in the history of western natural philosophy and sciences.
http://www.sciencetimeline.net/

History of Evolutionary Thought
A timeline with information on major contributors to biology, geology, and paleontology from Aristotle up to the 20th century. From the UC Berkeley Museum of Paleontology.
http://www.ucmp.berkeley.edu/history/evothought.html

International Union of History and Philosophy of Science - Division of History of Science
Information on the organization, together with a links page and listings of upcoming conferences.
http://ppp.unipv.it/dhs

Today in Science History
Memorializes births and deaths of famous and not so famous scientists of the past, and other events in science history. Searchable.
http://www.todayinsci.com/

Museum of Microscopy
Virtual museum of microscopes, ranging from the earliest 16th century European instruments to modern microscopes from around the world.
http://micro.magnet.fsu.edu/primer/museum/index.html

A History of the Warfare of Science with Theology in Christendom
Complete text of the 1896 classic by Andrew Dickson White.
http://human-nature.com/reason/white/contents.html

History of Science
Book reviews from The Bactra Review.
http://www.santafe.edu/~shalizi/reviews/subjects/history-of-science.html

Ptolemy's map
A small description of Ptolemy's famous map.
http://www.empereur.com/ptolemy.html

History of the Physical Sciences in India
Essay outlining developments in the study of physics and chemistry in India. Lists some of the early atomic theories, as well as insights gathered in the fields of astronomy, optics, sound, and other branches of physics.
http://india_resource.tripod.com/physics.htm

Green Lion Press
Independent book publisher specializing in history of mathematics and history of science. Includes information on ordering, books available, and how to contact them.
http://www.greenlion.com/

Calendars Through the Ages
History and FAQs of various calendars, including Julian, Gregorian, Jewish, Islamic, Chinese, and Mayan. Astronomy, years, months, and days of the week.
http://webexhibits.org/calendars/

Darwin-L Archives on the Historical Sciences
Archives of messages and supporting materials from this professional discussion group on the history and theory of the historical sciences.
http://rjohara.net/darwin/

Resources in the History of Science and Technology
A directory of online and print resources from the University of Alberta library.
http://www.library.ualberta.ca/subject/historyscience/guide/index.cfm

History of Science in the United States
Bibliographies of reference and other works, including original sources, and an indexed chronology of American science 1790-1910.
http://home.earthlink.net/~claelliott/

Science and You
Several articles, mostly on history and philosophy of science, aimed at a lay audience.
http://www.scienceandyou.org/

Anyone Vague Science Essays
Twentieth century scientists write about their discoveries and about the value of science.
http://www.geocities.com/anyonevague/essays/

History of Science and Technology
A timeline of the history of science that can be organized by either date, or alphabetically by scientist's name, with (very) basic data and some links. Also provides a list of popularizing books on the subject.
http://www.ownyourself.com/scihist.nsf/date

Who Invented the Thermometer?
Timeline showing the development of the thermometer from Galileo to Kelvin.
http://www.brannan.co.uk/thermometers/invention.html

Victorian Science
Science in the 19th century. Overview plus much specific information on themes, disciplines, and individuals.
http://www.victorianweb.org/science/sciov.html

Islamic Alchemy in the Context of Islamic Science
Focus on chemistry, botany and medicine with overviews in other areas.
http://www.levity.com/alchemy/islam.html

Ancient Greece: Science and Technology
Discusses early inventions, such as calculating devices, machines using gears, steam engines, war technology, and town planning. Some mathematicians included are Thales, Pythagoras, Euclid, Archimedes, and Appolonius. Some topical concepts covered are astronomical discoveries, prime numbers, evolution of the species, and measuring the circumference of the earth.
http://www.mlahanas.de/Greeks/Greeks.htm

Muslim Scientists, Mathematicians and Astronomers Before European Renaissance, 700-1500 C.E.
Historical review of the Muslim contribution to humanity and Islamic Civilization. Gives biographies of scientists and describes their contributions and influence on European thought and discoveries.
http://www.cyberistan.org/islamic/index.htm#scit

Events in Science, Mathematics and Technology
Neil Brandt's timeline covers historic highlights from classical mechanics, electromagnetism, quantum mechanics, astronomy, cosmology, mathematics, and technology.
http://www.astro.psu.edu/users/niel/scales/sh-30.pdf

In Our Time: Science Archive
BBC Radio 4 series in which Sir Melvyn Bragg discusses a topic in the history of ideas with a trio of experts. This page indexes the discussions on science, both historical and contemporary, for online listening.
http://www.bbc.co.uk/radio4/history/inourtime/inourtime_science.shtml

The Alchemy Web Site
Comprehensive library of imagery, symbols, music, alchemical texts and commentary. Includes course material in practical alchemy, bibliography, and modern day resources.
http://www.levity.com/alchemy/index.html

Nobel e-Museum
Biographies and Nobel Lectures of the prizewinners, from the Nobel Foundation.
http://nobelprize.org/

From Antiquity to Einstein
Lecture notes from Jose Wudka of the University of California, Riverside. Page includes definitions and examples of early uses of scientific method, large numbers, early cosmology, Newtonioan laws, electricity, magnetism, waves versus pariticles, and light.
http://phyun5.ucr.edu/~wudka/Physics7/Notes_www/node2.html

Science and Engineering Indicators
Report by the National Science Board and National Science Foundation on U.S. science and technology, including education and research and development, from World War II to the end of the 20th century.
http://www.nsf.gov/statistics/seind04/pdf/volume1.pdf

Some Early Microscopes from the Optical Institute in Wetzlar
Carl Kellner founded what was named the Optical Institute in Wetzlar Germany in 1849. By 1851 he employed twelve workmen and was producing his first microscopes.
http://www.antique-microscopes.com/kellner/kellner1.html

Commentary on the Effects of Electricity on Muscular Motion
Facsimile of Galvani's original and an English translation.
http://www.bo.infn.it/galvani/de-vir-eng.html

Australian Science Archives Project - ASAPWeb
Aims to improve access to Australia's scientific, technological and medical heritage by helping to preserve records and artifacts and communicating the existence of this heritage to a wide audience. Includes scientist biographies.
http://www.asap.unimelb.edu.au/

Office of NIH History
Foster documentation, preservation, and interpretation of the history of the National Institutes of Health. Features online exhibits, education, and historical resources.
http://history.nih.gov/

History of Remote Sensing
Gives some hallmarks in the history of remote sensing, which, when tied to human history, have profoundly changed the way we view and understand our world.
http://observe.arc.nasa.gov/nasa/exhibits/history/history_0.html

Britain and the Rise of Science
Lisa Jardine investigates the origins of the commitment to science as the firm basis for Britain's success in commerce and industry. From the BBC.
http://www.bbc.co.uk/history/british/empire_seapower/jardineih_01.shtml

National Cataloguing Unit for the Archives of Contemporary Scientists
Catalogue of archives of the papers of contemporary British scientists. Search alphabetically, chronologically or by discipline. Also, has list of Nobel prize winners.
http://www.bath.ac.uk/ncuacs/

The Cosmic Elk
Articles, and books on science, history and the history of science, including the history of astronomy, Tudor history and the history of Siberia.
http://homepage.ntlworld.com/heather.hobden1/

University of Massachusetts Amherst: Social and Demographic Research Institue (SADRI)
Publishes the journal Social Science History, which reports its interdisciplinary research findings. Includes related association links.
http://www.umass.edu/sadri/ssh-journal/

19th Century Scientific American
Though very different from today's Scientific American Magazine, the articles of the 19th Century Scientific American is a nice read for students of this period.
http://www.history.rochester.edu/Scientific_American/index.html

Jesuits and the Sciences: 1540-1995
An exhibit of rare scientific works from the Cudahy Collection of Jesuitica.
http://libraries.luc.edu/about/jesuits/

4000 Years of Women in Science
Women's contributions to Science, from Antiquity to the Nineteenth Century.
http://www.astr.ua.edu/4000WS/