Sodium chloride in history, with many links to further relevant material. From the Salt Institute.

Dedicated to fostering popular interest and scholarly research in the history of science and its social and cultural relations.

Overview of microscope styles and history.

Links to documents and Web resources pertaining to the history of science including original texts from great scientific thinkers.

Long list of internet resources in the field of the history of science.

From The Isaac Newton Institute for Mathematical Sciences.

Has sections on agriculture, astronomy, earth science, mathematics and medicine.

List of the award winners, with brief biographical information and an extract describing each laureate's discovery.

A directory of online and print resources from the University of Alberta library.

Reviews, by Danny Yee, of a range of books on the history of science, mostly popular titles.

A Timeline of the History of Science and Technology from 20,000 BC to 1800.

A Science Odyssey presents the people and the discoveries of twentieth century science.

Technology chronology.

Some brief biographies, and interactive quizzes on female scientists.

Lots of thoroughly categorized links to material in the field.