Frameworks:

CakePHP, Zend FrameWork, Drupal and Joomla

Version Controllers:

GIT, TortoiseSVN, TortoiseCVS, winCVS and unfuddle.

Configured Servers:

Amazon EC2 and S3, RightScale, cPanel, WHM and Godaddy.

Open Source:

Mencoder, Mplayer and ffmpeg(Video Conversion), Red5(Flash Server),

JWchat and ejabberd (Chat) and Mantis (Bug Tracker)

PHP Tools:

Smarty, VirtueMart, WordPress, PEAR, CURL, phpBB, fpdf, vBulletin,

MediaWiki, phpMailer, pChart, AMFPHP, CAPTCHA(php-gd) and Lucene.

Scripting Languages:

PHP, JSP, and PERL.

Languages:

C, C++, JAVA, VB-6 and VB.net

Database Packages:

MySql, MS SQL Server, Oracle 9i and MS Access.

Web Tools:

Web 2.0, HTML, DHTML, CSS, RSS, ATOM, XML and JSON.

JavaScript/Ajax:

jQuery, MooTools, Yahoo Toolkit and Prototype.

Utilities:

Dreamweaver, Photoshop, Crystal Reports and winSCP.

Google:

Maps API (v2 and v3), Data APIs, OAuth and Analytics.

Web Servers:

Apache, Tomcat, IIS, AppServ, WAMP and XAMPP.

Windows:

All flavors of Windows from 3.11 to 7.

Linux:

Fedora, Ubuntu, CentOS, RHE and Unix

KDE and GNOME (Desktops of Linux)

C, C++, Java in gcc (Linux Compilers)

Samba Server, Squid Server (Proxy Server)

SVN, VNC, YUM.