GameStage: Zodiac Software - Detailed description of the company, as well as their released titles, including the game's genre, year of release, developer(s) and publisher(s). gamestage.topcities.com/zx-zodiacsoftware.html
Spectrum Adventurer: Zodiac Software - Lists their adventures for the ZX Spectrum. www.thespectrumadventurer.com/gamesbyspecificcompany.asp?companyid=1&companyname=Zodiac+Software
YSRnRY: Zodiac - Softography and reviews of some of their games. www.ysrnry.co.uk/bycompany/Zodiac.htm
