nocrew's PDP-10 stuff - porting GNU software Computers, Hardware, Historical, DEC - Nocrew's PDP-10 Stuff. PDP-10 software and links to other PDP-10 sites. http://pdp10.nocrew.org/
PDP-10 software archive Computers, Hardware, Historical, DEC - PDP-10 Software Archive. PDP-10 commercial software covered by the hobbyist license. http://pdp-10.trailing-edge.com/
pdp11.org Computers, Hardware, Historical, DEC - Pdp11.org. Dedicated to preserving the history and legacy of the PDP-11 series of 16-bit minicomputers. http://www.pdp11.org/
Managed Services Computers, Hardware, Historical, DEC - Mentec. PDP-11 operating systems plus layered products and services. https://www.mentec.com/
Classic Computing Mailing List Computers, Hardware, Historical, DEC - Classic Computing Mailing List. Mailing list of nearly 1000 members dedicated to preserve and archive classic computer documentation and software. https://classiccmp.org/