Blogs:

b2evolution (2.4.2) (visit site)
Nucleus (3.32) (visit site)
WordPress (2.6.3) (visit site)
 

Content Management Systems:

Drupal (6.6) (visit site)
Geeklog (1.5.1) (visit site)
Joomla 1.5 (1.5.7) (visit site)
Joomla (1.0.15) (visit site)
Mambo Open Source (4.6.5) (visit site)
PHP-Nuke (7.9) (visit site)
phpWCMS (1.1-RC4 Rev. A) (visit site)
phpWebSite (0.10.2) (visit site)
Post-Nuke (0.764) (visit site)
Siteframe (3.2.3) (visit site)
Typo3 (4.2.1) (visit site)
Xoops (2.0.18.1) (visit site)
 

Customer Support:

Crafty Syntax Live Help (2.15.0) (visit site)
Help Center Live (2.1.7) (visit site)
osTicket (1.3.1) (visit site)
PerlDesk (4.012.2) note: license required (visit site)
PHP Support Tickets (1.9) (visit site)
Support Logic Helpdesk (1.2) (visit site)
Support Services Manager (1.0b) (visit site)
 

Discussion Boards:

phpBB (3.0.2) (visit site)
SMF (1.1.6) (visit site)
 

E-Commerce:

CubeCart (3.0.17) (visit site)
OS Commerce (2.2 RC 2a + buySAFE) (visit site)
Zen Cart (1.3.8a) (visit site)
 

FAQ:

FAQMasterFlex (1.51) (visit site)
 

Hosting Billing:

AccountLab Plus (2.8 r14) note: license required (visit site)
phpCOIN (1.4.4) (visit site)
 

Image Galleries:

4images Gallery (1.7.6) (visit site)
Coppermine Photo Gallery (1.4.19) (visit site)
Gallery (2.3) (visit site)
 

Mailing List:

PHPlist (2.10.5) (visit site)
 

Polls and Surveys:

Advanced Poll (2.03) (visit site)
LimeSurvey (1.72) http://www.limesurvey.org
PhpESP (1.8.2) (visit site)
 

Project Management:

dotProject (2.1.2) (visit site)
PHProjekt (5.2.2) (visit site)
 

Site Builders:

Soholaunch Pro Edition (4.9.3 r17) (visit site)
Templates Express (1.7)
 

WIKI:

PhpWiki (1.2.11) (visit site)
TikiWiki CMS/Groupware (2.2) (visit site)
 

Other Scripts:

Dew-NewPHPLinks (2.0.1.0b SEF w/Thumbshots) (visit site)
Moodle (1.9.2) (visit site)
Open-Realty (2.5.3) (visit site)
phpAdsNew (2.0.11-pr1) (visit site)
PHPauction (3.2) (visit site)
phpFormGenerator (2.09c) (visit site)
WebCalendar (1.0.5) (visit site)