svg-math-graphics is a class that can render a math formula as a SVG vectorial chart. It takes a string with a math formula and creates a chart on which it draws a set of lines between consecutive points for the axes. The class returns the chart data in SVG format. The size of the chart and the size of the steps between each point in the chart are configurable parameters. You can draw functions in Cartesian or polar coordinates.
RainCaptcha is a CAPTCHA class that does not require any image processing extensions (GD, ImageMagick, etc). CAPTCHA was developed to be readable by humans and resistant to OCR software. It generates black-and-white images with 5 distorted letters on them and noise. Its checking algorithm is case-insensitive.
Arcavias is an e-commerce framework for Web shops, consisting of an e-commerce library, an administration interface, and different frontends. It's a modular stack which offers flexibility and speed. Unlike other Web shops, it's not a monolithic application. Instead, you have a choice between several user frontends, and you can adapt them to your needs or write one of your own.
FlatTraffic is a Web interface for analysing netflow records and showing statistics designed to make it clear and easy to determine which hosts on a network are consuming data. It has been primarily designed for use by networking and servers geeks who have to endure the pain of data-capped Internet Service Providers, something that's unfortunately rather common in the Australia/New Zealand region in particular.