The Infocom Gallery: The Witness
- High-quality scans of the gray box packaging, manual, matchbook, suicide note, and telegram.
- http://infocom.elsewhere.org/gallery/witness/witness.html

Infocom Games - The Witness
- Game info, box photos and blurb, specifications, release information, and sample transcript from manual.
- http://www.infocom-if.org/games/witness/witness.html

SPAG Reviews: The Witness
- Three reviews by Brian Reilly, Stephen Grenade, and "Bozzie".
- http://www.sparkynet.com/spag/w.html#witness

Infocom Documentation Project
- PDF file of scanned orginal game manual.
- http://infodoc.plover.net/manuals/temp/witness.pdf

Review by Matthew Murray
- "The Witness is not as thrilling to play as Infocom's other mysteries, or most of their other games, but it is still interesting and worth the time of any mystery buff."
- http://www.matthewmurray.net/Reviews/ComputerGames/Witness.html

New Zork Times: Witness
- Text of game announcement from Infocom's newsletter.
- http://www.csd.uwo.ca/Infocom/Articles/NZT/Nztsum83.html#witness

Infocom Homepage: The Witness
- Description, box art, release information, statistics, and packaging details.
- http://www.csd.uwo.ca/~pete/Infocom/witness.html

New Zork Times: How The Witness Came to Be
- Article by Stu Galley about the game's creation.
- http://www.csd.uwo.ca/Infocom/Articles/NZT/Nztsum84.html#witness