Rezork - Play the Zork saga in your java enabled browser. Source code available and released under GNU GPL. - http://www.gameszoo.org/rezork/
SPAG Review - Insightful criticism by Duncan "Second April" Stevens. "There are many good things about Zork III, and perhaps the best of them is that it goes against the fantasy-game grain." - http://www.sparkynet.com/spag/z.html
Encyclopedia Frobozzica - Web Version 2.0, the "Abridged 1072-3" edition of the Encyclopedia, with many updates by Ominous Bells including events from Nemesis and Zork Grand Inquisitor. - http://www.irondune.com/words/frobozzica/
IF-Review: Archaeology - Paul O'Brian's Review of Dungeon, predecessor to the Zork trilogy. - http://www.ministryofpeace.com/if-review/reviews/20010629.html
Return To Zork....Again - Petition asking Activision to continue making Zork games. - http://www.petitiononline.com/zg15/petition.html
Zork Library, The - Previews of fan game "Zork: The Hidden Evil" in development. Zork Grand Inquisitor title fonts. Hints, maps, pictures, music, desktop themes, and downloads of text games in the series. - http://www.thezorklibrary.com/
History of Zork, The - Text of three part series of articles about the origins of the Zork Trilogy, from Infocom's newsletter The New Zork Times. - http://www.csd.uwo.ca/Infocom/Articles/NZT/zorkhist.html
Just Adventure: Zork I, II, III Reviews - Retrospective on the Zork Trilogy by Erik Reckase. - http://www.justadventure.com/articles/JustASCII/04--Zorks/04.shtm
Just Adventure: Magical Infocom Adventures - Retrospective of Wishbringer and the Enchanter Trilogy by Erik Reckase. - http://www.justadventure.com/articles/JustASCII/06--Infocom/06.shtm
Chronology of Quendor - Exhaustive timeline of the Zork series of games. - http://quendor.robinlionheart.com/