CEZ Game Studio
Collection of Spanish programmers producing games for a number of 8 & 16-bit platforms.
Crimson Editor
Multi-file text editor, with spell-checking, syntax highlighting, and project support.  Used to edit all the source code for the above titles.
Cronosoft
Retro publishing house where the above titles can be purchased, along with more by other authors for 8-bit platforms.
Electric Wolf
Xbox 360 indie developers who wrote the original version of both 'Miner Man' and 'Cool Shapes'.
Jonathan Cauldwell
Fellow and very prolific developer of Spectrum titles.
Fogarty IT Services
Comprehensive range of IT solutions - and the hoster of this site.
Kevin Thacker
Amstrad Guru, developer of the Arnold emulator, and coder of games for various 8-bit platforms.
MicroMart
Fantastic read for all things computer-related, both new & old.
Mojon Twins (The)
Group of ex-CEZ programmers.
Old-School Gaming
The "one-stop shop for new games on classic platforms and "retro" titles for modern hardware"
Pasmo
Command-line Z80 assembler, with which all the above titles were compiled using.
Retro Computers
Old school with a lighthearted look at retro computers
Retro Computer Museum
Retro computer and console museum combined with a wheat free tea room, somewhere in Leicestershire, UK.
Retro Gamer Magazine
Magazine profiling all types of retro gaming- on computers, consoles, arcades, handhelds & phone.
RetroGamerCD
Great CD-based magazine - download, burn & enjoy reviews, articles & games.
RetroWorks
Group of ex-CEZ programmers.
RWAP Software
Fantastic site for hardware & software supplies for all Sinclair machines, and a lot more.
Tipshop
Pokes, Tips & Maps for Spectrum games.
Tommy-Gun
8-Bit development IDE, used to create the sprites for nearly all of the above games.
World of Spectrum
A one-stop site for all things Spectrum related - Games, Emulators, Utilities, Forums - the lot!
Your Sinclair The Rock'n'Roll years
Site dedicated to one of the best Spectrum magazines of the time.
ZXDS
Spectrum emulator for the Nintendo DS.  Support all models + AY-Sound with a great new GUI.
ZX Museum
The ZX81 Museum was set-up to preserve and showcase original Sinclair branded ZX81 hardware, software and literature
ZX Spectrum
A treasure-trove of Spectrum games reviews, images, videos and misty eyed reminiscing.