pnCommerce
- A pnAPI compliant e-commerce module. [Open Source, GPL]
- http://noc.postnuke.com/projects/pncommerce

Ringlink
- Webring module allows member ringmasters and their member webmasters to manage and use the Ringlink Webring System as hosted from a PostNuke-generated website using its MySQL database. [Open source, GPL]
- http://www.ringlink.org/

PostCalendar
- An online events calendar for PostNuke including a well-designed site block. Contains support for one time or recurring events and calendar sharing with multiple categories and PostNuke topics integration [Open Source, GPL].
- http://noc.postnuke.com/projects/postcalendar/

pnAffiliate
- Affiliate module for use in the PostNuke System [Open Source, GPL].
- http://biz-whiz.com/Downloads-req-getit-lid-57.html

pnEncyclopedia
- Encyclopedia intended for the creation of the open encyclopedia on a PostNuke website. Users can submit new terms and offer changes to current ones but an editor can accept or reject the requested changes [Open Source, GPL].
- http://sourceforge.net/projects/pnencyclopedia/

PNphpBB2
- Modified version of phpBB2 for better integration and functionality on a PostNuke system including a site block. Support is provided by extensive forums, documentation and a demo forum [Open Source, GPL].
- http://pnphpbb.com/

ArgueGraph
- Functions as an activity module to help students understand conceptual issues. Full documentation included [Open Source, GPL].
- http://tecfaseed.unige.ch/users/mourad/arguegraph/ArgueGraph.html

YellowPHP
- A multi-lingual yellowpages module for use in PostNuke [Open Source, GPL].
- http://sourceforge.net/projects/pn-yellowphp/

MyNukeGenealogy
- A family ancestry module for use in PostNuke-based genealogy websites [Open Source, GPL].
- http://sourceforge.net/projects/mynukegenealogy/

pnCGI:IRC
- Allows integration of the CGI:IRC webchat script into a PostNuke website [Open Source, GPL].
- http://sourceforge.net/projects/pncgiirc/

PN-Concert
- Concert information and calendar management system for use in a PostNuke website [Open Source, GPL].
- http://sourceforge.net/projects/pnconcert/

PostGuestbook
- A pnAPI compliant Guestbook module that uses templates and smarty for site presentation [Open Source, GPL].
- http://sourceforge.net/projects/postguestbook/

FormExpress
- Form creation module that allows as either pages or as site blocks [Open Source, GPL].
- http://sourceforge.net/projects/pn-formexpress/

Amazon
- Integrates an Amazon.com associate account store to display within a PostNuke website [Open Source, GPL].
- http://sourceforge.net/projects/pnamazon

OnlineBible
- Bible module that seamlessly integrations PostNuke and has built-in support for additional translations and contains support for extra-biblical books including commentaries [Open Source, GPL].
- http://onlinebible.sourceforge.net/

EbayList
- An Ebay module that lists Ebay auction items in a PostNuke site [Open Source, GPL].
- http://www.oohshiny.net/

Books
- Flexible book module that can easily support additional media types [Open Source, GPL].
- http://sourceforge.net/projects/pn-mod-books

pnFlashGames
- A flash game system made into a PostNuke module that allows storage of high scorers, user comments and game ratings [Open Source, GPL].
- http://www.pnflashgames.com/

ContentExpress
- Ideal for use as a site documentation module or for manuals due to its powerful content-based structure and features [Open Source, GPL].
- http://www.xexpress.org/

Gallery
- A flexible and multi-featured photo album system for PostNuke. Sample galleries are provided on-site as a demonstration of it in action [Open Source, GPL].
- http://gallery.menalto.com/