The Infocom Gallery: Ballyhoo
- High quality scans of box, circus program, ticket, balloon, and trade card.
- http://infocom.elsewhere.org/gallery/ballyhoo/ballyhoo.html

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

Review by Matthew Murray
- Capsule review. "An interesting game, but certainly not one of Infocom's more intense or defined."
- http://www.matthewmurray.net/Reviews/ComputerGames/Ballyhoo.html

New Zork Times: Now Introducing... Ballyhoo
- Text of game announcement from Infocom's newsletter.
- http://www.csd.uwo.ca/Infocom/Articles/NZT/Nztwin86.html#ballyhoo

MobyGames: Ballyhoo
- User reviews, credits, box image, screenshot, trivia, and other information.
- http://www.mobygames.com/game/sheet/gameId,1578/

Infocom Homepage: Ballyhoo
- Description, box art, release information, game statistics, and packaging details.
- http://www.csd.uwo.ca/Infocom/ballyhoo.html