California Digital, Inc. A company that still sells CP/M. http://www.cadigital.com

Osborne CP/M Library Archive containing software and documentation for the Osborne-1 and Osborne Executive. http://www.guntersville.net/osborne/

Commodore and CP/M Technical description of Commodore's implementation of CP/M Plus in C128, including a couple of tools. http://www.herne.com/cpm.htm

Hal Bower's Home Page Fixes and utilities for CP/M and Z-Systems, ZSDOS/ZDDOS, and B/P BIOS. http://home.att.net/~halbower/

The Unofficial CP/M Website CP/M binaries and documentation, including the original source code and manuals. http://www.cpm.z80.de

CP/M Center Information about CP/M and links to various CP/M resources. http://www.gaby.de/ecpm.htm

CP/M 3 patches for Spectrum and Amstrad CP/M patches for Spectrum +3 and Amstrad PcW16. http://www.cpmspectre.pwp.blueyonder.co.uk/cpm/cpm-indx.htm

John Elliott's CP/M Main Page A technical resource about internals of CP/M. http://www.seasip.demon.co.uk/Cpm/index.html

MaxFrame Corporation Information about the history of CP/M and Digital Research. Links to various CP/M resources. http://www.maxframe.com/CPM.HTM

The CP/M-86 Software Repository Downloads and patches for CP/M-86. Updated regularly. http://www.seanet.com/~klaw/

The Online Software Museum - CP/M An article about the history of CP/M, including a short user's guide and an on-line access to a real CP/M system. http://museum.sysun.com/museum/cpm.html

Z-Node 51 Downloads and information for CP/M, Z-systems and Z80 computers. Contains a collection of articles and manuals, too. http://www.znode51.de/indexe.htm

Commercial CP/M Software Archive A collection of CP/M software, including source codes and documentations. http://www.retroarchive.org/cpm/

John R Pierce's Home Page Contains pictures of Digital Research people. http://www.hogranch.com/digital.research/

Joe Wein's DRI page Some notes about Gary Kildall, CP/M and Microsoft from a former DRI programmer. http://www.joewein.de/dri.html

comp.os.cpm Frequently Asked Questions. http://www.cpmspectre.pwp.blueyonder.co.uk/cpm/cpm_faq.htm

OAK Repository - CP/M Archive (mirror) German mirror of the largest public CP/M archive. ftp://ftp.mayn.de/pub/cpm/

ZCN - CP/M-like operating system for the Amstrad NC100/NC200 A free operating system for the Amstrad NC100 (Notepad) and NC200 (Notebook). It's largely compatible with CP/M 2.2. http://www.ibiblio.org/zcn/

CP/M 3.0 for the C128 Comprehensive description on how to build a CP/M Plus version for the Commodore C128. http://www.8086.info/c128/

S100-Manuals An archive of antique software and manuals related to S100 and CP/M hardware and software. http://www.s100-manuals.com/