Apple Museum, The Database of historical facts and information about Apple and its products. Divided into four parts: history, products, biographies, and codenames.
Customer Driven Research A little-known computing story from the late 1970s — about customer-driven research that played a role in the development of the IBM Personal Computer.
Customer Driven Research Reviews the history of Exxon's influence on the IBM Personal Computer's hardware design, software vendors, and marketing.
History of Computers Going back as early as the 13th century, biographies of men who dreamed of thinking machines are featured, and the machines that preceded the computer are outlined.
Obsolete Technology Houses a large amount of information about old computers from a variety of manufacturers. Complete with time lines of various manufacturers and computer lines as well.
Old-computers.com Virtual museum of vintage PC's. Browse computers by name, company or year. Also reviews, manifestations, a collectors database, and fun stuff.