http://matthieu.benoit.free.fr/databooks.htm Looks like a fellow in France
wants to give away/trade a lot of documentation.
https://www.intel-vintage.info/
https://www.intel-vintage.info/intelotherresources.htm
Note the Copyright says no copyright, take what you need freely. There is a
LOT of interesting stuff on this site.
http://www.ebyte.it/library/refs/SoftwareOnlineTexts.html
http://gordonbell.azurewebsites.net/digital/decmuseum.htm more DEC stuff
than I have ever seen together.
Cindy Croxton