HTMTEX reads hand-coded ASCII HTML documents with embedded TEX-like islands (backslash-escaped symbols, inline math, and displayed math). It writes Unicode HTML documents with UTF-8 encoded symbols, and span- and table-formatted math. The converter itself is a customizable sed script. Visualization is regulated by a customizable stylesheet file.
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.
OGRI (Original Generic Reporting Intranet) provides a simple Web-based interface with "portals" for viewing any number of reports in a secure manner. It is designed to be as lightweight as possible in terms of server load, and its simple interface means it works well with most browsers.