Zak McKracken and the Alien Mindbenders

The Zak McKracken Archive - http://www.zaksite.co.uk/
News, FAQ, user guide, screen shots, walkthrough, in-game jokes, and fan-made sequels.

UHS Hints - http://www.uhs-hints.com/uhsweb/zak.php
Universal Hint System hints by Jason Strautman.

Zak McKracken and the Alien Mindbenders - http://www.fortunecity.com/meltingpot/neches/158/zak.htm
Fan fiction.

Zak McKracken and the Alien Rockstars - http://www.zak2project.de/
Fan project to develop a sequel to Zak McKracken.

Zak McKracken between Time and Space - http://www.zak2.org/
Fan project to develop a sequel to Zak McKracken.