W3C

XHTML™ 1.1 - Module-based XHTML - Second Edition
Cascading Style Sheets
Extensible Markup Language (XML)
Scalable Vector Graphics (SVG)
JPEG
JPEG
Portable Network Graphics
Portable Network Graphics

Web

Firefox web browser
List of web browsers
PHP: Hypertext Preprocessor
MySQL :: The world's most popular open source database
The Apache HTTP Server Project
TCP/IP model
Internet hosting service
Internet media type

Extended languages

jQuery: The Write Less, Do More, JavaScript Library
Really Simple Syndication

Scripts

Javascript Flash Player detection and embed script
WordPress › Blog Tool and Weblog Platform
phpBB • Creating Communities Worldwide
phpMyAdmin | MySQL Database Administration Tool

Linux

Ubuntu Linux
GNOME: The Free Software Desktop Project
the Linux Kernel

License

Creative Commons
GNU General Public License

Instant Messaging

XMPP based

XMPP Standards Foundation
Jabber.org | open instant messaging and presence
Gajim, a Jabber client
Multi-protocol Instant Messaging client

VoIP

SIP based

Ekiga ~ Free your speech
Comparison of VoIP software
Session Initiation Protocol

XIPH

The Xiph.Org Foundation
VORBIS
THEORA
FLAC

Server

Free server software for streaming multimedia
Red5 : Open Source Flash Server Open Source Flash
Real Time Messaging Protocol
Global standard for accessing rich media over the Internet

Office

The Free and Open Productivity Suite
OpenDocument

Image Manipulation

GIMP - The GNU Image Manipulation Program
Inkscape. Draw Freely

3D animation

Free open source 3D content creation suite

Wireless

Wi-Fi
WiMAX Forum