Operating Systems:
Microsoft Windows, Linux, FreeBSD, Sun Solaris

Relational Database Management Systems:
MS SQL, MySQL

Internet-Related:
HTML/DHTML/WML/XML/XSLT, Active Server Pages (ASP), Hypertext Preprocessor (PHP), Application Servers, Web servers (Apache, Microsoft Internet Information Server, etc.)

Networking and communication:
HTTP/HTTPS, TCP/IP, FTP, POP3, IMAP, SMTP, WAP

Programming language and tools:
Java, C/C++, JavaScript, Visual Basic/VBA, Perl, PHP, MS Visual Studio .NET

Graphic and Interactive design tools:
Adobe Photoshop, Adobe ImageReady, Adobe Illustrator, Macromedia Flash, Corel Draw

Web creation and management systems:
Instant CMS Platform, Macromedia Homesite, Macromedia Dreamweaver, XML Spy

Programming Methodologies:
Object-oriented Programming, Microsoft Solutions Framework