Pantechnicon
- Database of links and information regarding all subjects of HyperCard development.
- http://pan.uqam.ca/pan/pmwiki.php/HyperCard/HomePage

Gary's HyperCard Page
- Contains several downloadable HyperCard stacks created by the author, including a few designed for children.
- http://webwonks.org/Extra/hypercard/HyperCard.html

StackChat
- A collection of articles about HyperCard programming, including many examples and links to other sites.
- http://www.artgallery.nsw.gov.au/sub/jcooper/stack_chat/

European HyperCard User Group (eHUG)
- A European Apple User Group for xTalk programmers.
- http://www.ehug.info

A Universe In a Jar
- A Newtonian physics simulator created with HyperCard for the 2003 Canada Wide Virtual Science Fair.
- http://www.alumni.ca/~krame3r

FreeCard
- Official site of the opensource clone of Apple's HyperCard program. Includes development map and currently available downloads.
- http://www.freecard.org/

HyperCard Club
- A Yahoo club for anyone with an interest in HyperCard. Post scripts, ask questions, answer questions, and just talk about HyperCard.
- http://groups.yahoo.com/group/hypercardclub/

HyperCard Mailing List Archive
- Searchable archive going back to February 1999. Also includes subscription instructions and other background info about the list.
- http://www.quibble.com/hclist/

HyperCard info and freeware from Ben Lawson
- HyperCard information and freeware from Ben Lawson
- http://www.nobleswan.com/hypercard/

HyperActive Software/HC Virus Definitions
- HyperCard Virus Compendium
- http://www.hyperactivesw.com/Virus1.html

HyperCard FAQ - Addendum
- HyperCard FAQ - Addendum
- http://www-psych.stanford.edu/~pinto/hc4.html

HyperActive Software
- Software development firm, specializing in Hypercard and related environments. Site includes comprehensive Hypercard virus information, anti-virus software, Hypercard tutorials, and Hypercard success stories.
- http://www.hyperactivesw.com