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Of course not everything I build is web based or for that matter public accessable such as the many SMS services I've developed (chats, horoscopes, feeds, payment systems, games, (website) access systems, etc), i-mode sites, wap sites, etc., so here are...

Some viewable projects

www.mosadex.nl

Developed using Perl (mod_perl) as the programming language, MySQL as the database, and Apache as the web server. Special features include:

Object oriented design.
All HTML is generated from HTML template files so that web designers can edit them themselves.
On-the-fly GZIP compression of output for browsers that support it (properly) such as IE 5.5+.
XML-RPC interface for Perl <-> PHP inter-process/application communication.
File based caching of response output (such as form submissions, etc).
Dynamically created (and cached) M$ Excel downloadable versions of many dynamically generated HTML pages (from a Linux machine!)
Automated validation, decompression, parsing and importing of database tables sent by email to a special POP3 account.
Session management using MySQL table for persistent storage of session objects.
Shared memory usage for shared data.
Dictionary attack prevention code.
Persistent (cached) database connection (and some prepared statement handles too).
Can be run without modifications in CGI or in Apache::Registry (mod_perl) mode, and on most operating systems (Linux, Windows, etc).
Complete back-end management and statistics interface.
Extensive logging to file and/or email of trapped exceptions (if any) amongst others.
and much more...
...but best of all, most of these features are inherited from my own reusable application framework.

If you want to try it out, then you can request demo login credentials on the login page of that site.

Club Aircraft Booker

This is a club aircraft booking system I made for 2 local flying clubs. Each club has their own administrators and users. This system can easily support a virtually unlimited number of flying clubs. If you want to use it for your club, just send an email asking for a (test) account.
Booking systems of some clubs currently using it:
Kerry AeroClub
CG-UFT Owners (in Ottowa)
PH-676 Owners
Røros Flyklubb
RAAF Richmond Flying Club
Tenair LTD
Tynset flyklubb (club link: www.tynset-flyklubb.com)

RTTTL parser & optimizer and RTTTL to MIDI converter

These are 2 web based scripts that were originally meant as examples to demonstrate the functionality of my Perl modules.
The RTTTL to MIDI converter converts RTTTL code to MIDI format.
The RTTTL Parser parses, validates, and optimizes RTTTL songs.

Visual Aircraft Weight & Balance Calculator

This is a free web service for aircraft pilots. You can use it by clicking here. This application consists of a combination of Perl CGI scripts, Perl modules, Javascript, and Java applets. This service is a good example of how Javascript can communicate with Java applets and vice versa.

Pharma 3.2 article search and online order application

Holland Pharma B.V. contracted Skybound Software to develop a Windows desktop application for free distribution amongst thousands of end users. The purpose of this application was to let end users perform all kinds of search queries on the more than 70000 article stock and place orders via fax, mail, or internet.

The database had to be file based so that deployment to thousands of end users would be cheap, easy and without third-party licence fees. At the same time this database had to be lightning fast and deliver results in split seconds. After much testing a very suitable solution and result was found.

Another challenge was the internet ordering. Sending orders per SMTP was out of the question as many users did not have access to SMTP servers. Most users have access to HTTP, so this became the chosen protocol. A centralized CGI gateway was developed to handle all these HTTP order requests and handle them off on the fly, returning status information to the users application (something that cannot be done using SMTP).

You can download this software for free and without hassle from the Holland Pharma internet site.

To supplement this application, a CGI script was developed for searching the the article stock online. This CGI script relies on a MySQL database for the extremely fast results. This CGI script too can be found on the Holland Pharma internet site.

Varuvo 3.2 and Mosadex 3.2 article search and online order applications

After the success of the Pharma application, associated companies of Holland Pharma B.V. requested the same application but in their house styles. The Varuvo application can also be downloaded for free and without hassle from the Varuvo B.V. internet site.