On CBI's web site, we maintain a list of related resources that might be useful to individuals doing research in the history of computing. These include archival collections at other institutions such as the Library of Congress or Stanford University, but they also include web sites and databases. Some of the databases state "Available to U of M faculty, staff, and students only." If you are at a different institution, and the resource sounds interesting to you, check your college or university's library web site. There's a good chance that your library will subscribe to the database as well. If you're not sure, ask a librarian!