The Jargon File (AKA, _The New Hacker's Dictionary_) is an essential repository of computer historical information.

A virtual museum containing historical information on computers and computer facilities in the USSR. Includes descriptions of computers, their characteristics, pictures, and personalities.

Houses the UK's most important collection of documents relating to the history of computing, and encourages interest and study in the history of computing more generally.

This site is under construction but has some nice pictures of some pre-IBM machines.

Covers the earliest ways of encoding data up to the cards used in voting systems today.

Writings on computers, the early online world, and the Internet, dating from 1992 to 2000.

In San Francisco Bay Area; background, history, future: trends, forecasts.

An international organization which aims to promote and develop interest in the use of computers in all types of historical study at every level, in both teaching and research.

Detailed information including early pioneers and companies, archives, languages, and networking from the Department of Computer Science at Virginia Tech.

Offers a detailed timeline on the history of computer. Sections include hardware, software, pioneers and references.