Series of articles by Dag Spicer in Dr Dobb's. Topics include the IBM 650 and the LINC personal computer, the articles are available in printer friendly formats. http://www.ddj.com/columns/history/
This is the home of the Computer Evolution File. This file attempts to provide a comprehensive graphical representation of the evolution of the modern computer for the period 1934 to 1950. The file is licensed with an attribution, share alike creative com http://www.virtualtravelog.net/projects/ComputerHistory/
An archive aimed at preserving important pieces of computing and general history. It contains source code and programs with an eye towards emulators and rare/endangered code. Also present are specs and photos of old equipment and several e-book collection gopher://quux.org/