The Infocom Gallery: Seastalker - High-quality scans of Infocom's Seastalker packaging, browsie, Infocards, decoder, and sticker. - http://infocom.elsewhere.org/gallery/seastalker/seastalker.html
Infocom Documentation Project - PDF file of scanned original game manual. - http://infodoc.plover.net/manuals/temp/seastalk.pdf
Review by Matthew Murray - Capsule review. "Seastalker is, overall, a good game, and will definitely appeal to children and those who enjoy adventure stories." - http://www.matthewmurray.net/Reviews/ComputerGames/Seastalker.html