Embedded Systems and Computer Architecture  
   A book with software which takes the reader step-by-step through the design, construction, and programming of a microprocessor (based on the classic Zilog Z80 microprocessor). Includes a Z80 IDE and a simulator with add-on devices.
   http://homepage.ntlworld.com/grwilson/

Thomas Scherrer Z80-Family Official Support Page  
   Information about programming, hardware, software, utilities, CPUs, and assemblers for the Z80 processor family.
   http://www.z80.info/

The New Image  
   Z80, R800 and GBZ80 cross assembler tniASM for MS-DOS and Win9x.
   http://www.tni.nl/

Z80 cross-platform macro assembler  
   An assembler based on ideas of The Netwide Assembler (NASM) for the Intel x86 platform by Ilya G. Aniskovets.
   http://www.zxasm.narod.ru/

Dincer Aydin's Z80 Page  
   Description of a Z80 based microprocessor training system, including source codes and development tools.
   http://www.geocities.com/dinceraydin/z80/index.html

uIP for Z80  
   The small TCP/IP stack called uIP ported to compile with the SDCC compiler.
   http://www.dcc.unicamp.br/~massia/uip/

Z80-ASM  
   A compiler of the Z80 CPU assembler, runs on DOS, Linux; written in C.
   http://artax.karlin.mff.cuni.cz/~brain/z80-asm/

Francis Görmarker Page  
   Z80 hardware and software resource page: Z80/Z180/PIC related documentation, source code, electronic schematics, executable files created by author during various home projects.
   http://home.swipnet.se/~w-68269/

z80 Documentation  
   Programming documentations and tutorials for the z80 CPU and the TI-83 calculator.
   http://www.ticalc.org/pub/text/z80/

Z80 Simulator IDE  
   An application that supplies Z80 developers with graphical environment for Windows and integrated BASIC compiler, assembler, simulator (emulator), disassembler, and debugger.
   http://www.oshonsoft.com/z80.html

Icarus Productions - Z80 coding  
   Z80 programming tutorials, utilities and FAQ for beginners.
   http://icarus.ticalc.org/articles/z80_coding.html

Home of the Z80 CPU  
   Reference site with documentation on Z80 programming, hardware, software and operating systems.
   http://www.geocities.com/SiliconValley/Peaks/3938/z80_home.htm

z80as  
   A Unix (Linux, BSD) cross assembler for the Zilog Z80 microprocessor.
   http://eyff.home.insightbb.com/z80as.html

Pasmo  
   A portable Z80 cross assembler. Short description and download. Available in English and Spanish.
   http://www.arrakis.es/~ninsesabe/pasmo/

Z80 Assembly for Novices  
   A series of lessons introducing z80 assembly at a semi-beginner level and slow pace. Factual knowledge and pieces of advice concerning programming are intertwined. Includes detailed explanation for all the instructions organised in categories.
   http://www.hszk.bme.hu/~pg429/z80guide/

Z80ASM  
   An assembler based on ideas of The Netwide Assembler (NASM) for the Intel x86 platform by Ilya G. Aniskovets. ZXEDIT (with syntax highlight). Source editor is written specially for Z80ASM cross-assembler.
   http://z80.msk.ru/

R.A.Z.E.  
   A Zilog Z80 emulator for Intel based x86 systems.
   http://caesar.logiqx.com/html/libs/cpu/raze.shtml

Z80 Bits  
   A collection of Z80 routines.
   http://map.tni.nl/sources/external/z80bits.html