Software Installation

Control Panel

cPanel
Plesk
Webmin
DirectAdmin

Helpdesk

WHMCS
WHMAutoPilot
Kayako
OS Ticket

Ecommerce

OScommerce
Magento
OpenCart
Zen Cart

CMS Script

Drupal
Mambo
Joomla
Moodle

Blog Script

Anchor CMS
Webasyst Blog
b2evolution
Wordpress

Forum Script

phpBB
vBulletin
Invision Board
Simple Machines Forum (SMF)

Media Server

RMS(Ray Media Server)
Adobe Flash
RED5
Flussonic

Streaming Server

CentovaCast
AzuraCast
MediaCP
SonicPanel
Live365

Web Application

Perl,PHP,ASP.NET
ioncube
eAccelerator
Zend Opimizer

Web Component

FFmpegr
Libvorbis
FLVtool2
Lame MP3 & Mplayer

Reporting & Monitoring

Nagios
Cacti and MRTG
rkhunter
chkrootkit
maldet,csf,bfd

Other Scripts

Fantastico
SimpleScripts
Softaculous
RVSkin etc