General

The History Channel    

Hyperhistory Online: Timeline with clickable maps, biographies and events.

HistoryWorld.net: Couldn't get all parts of this site to work, notably the 'tours' but the site has some good information.

Best of History Websites: "Best of History Web Sites is an award-winning portal that contains annotated links to over 1000 history web sites."

BBC History    PBS History   

Eyewitness to History: " Your ringside seat to history - from the Ancient World to the present. History through the eyes of those who lived it."

Yahoo! History Directory

History House : " The dirt swept under the carpet of centuries of history."

The Avalon Project at Yale University : " The Avalon Project will mount digital documents relevant to the fields of Law, History, Economics, Politics, Diplomacy and Government. We do not intend to mount only static text but rather to add value to the text by linking to supporting documents expressly referred to in the body of the text." Documents are broken down by century, from 18th to 21st.

Topic Specific

History of China     History of Japan

Math, Science, Art and Literature

History of Mathematics - Clark University     MacTutor History of Mathematics Archive - University of St. Andrews, Scotland   

American Institute of Physics - Online History

Understanding Evolution - Berkley

National Library of Medicine - History of Medicine     History of Medicine - Karlinksa Institutet     Medicine & Madison Avenue

The Cambridge History of English and American Literature

Ancient - Mythology

The Duke University Papyrus Archive

Discovering Egypt : fun resources showing temple locations, egyptian mathematics and hygropliphics as well as general history and short biographys.

Encyclopedia Mythica

Selected Chinese Myths

Bulfinch's Mythology    

Windows to the Universe - Mythology

Norse Mythology

Business & Finance

Commanding Heights, The Battle for the World Economy - PBS : "The purpose of this site is to promote a better understanding of globalization, world trade and economic development, including the forces, values, events and ideas that have shaped the present global economic system."

The History of Economic Thought

Encyclopedia of Economic and Business History : Very good resource on a somewhat obscure topic.

History of Money from Ancient Times to Present Day

 

Museums

National Museum of Natural History - Smithsonian     The Met - Timeline of Art History    Museum of History of Science, University of Oxford