News and Discussion

• comp.os.cpm -- The main CP/M news group
• comp.os.nowhere -- another newsgroup
• seattle-retrocomp -- Seattle Retro-Computing Society's news group

Historical Stuff

• Wikipedia -- Wikipedia's entry on CP/M
• Wikipedia -- Wikipedia's entry on CP/M-86
• Herb Johnson's take on the history of CP/M; from his website
• Creative Computing Magazine -- from a contemporary perspective
• imsai.net -- Ex-IMSAI engineer Joseph "Joe" Killian's take.
• An anonymous history from 1998.

Old Computer Sites

• Old Computers -- a goldmine of info on old computer and gaming systems.
• The Obsolete Computer Museum -- still onine, but not updated since 2002.
• Kee's Computer Home -- a collector of old computers.
• Kee's old computer links -- LOTS of 'em (and yes, I'm cheating).
• Seattle Retrocomputing Society -- Nice site design. Why didn't I think of that? :-)

Herb Johnson

• Retrotechnology

Caldera's FTP Site

• Caldera's FTP Site -- A mirror of Caldera Inc.'s FTP site wherein they made DR-DOS and CPM 2.2 available for download.