Languenet is a PHP application originally written for Language departments of Universities, allowing users to register for educational courses online and administrators to manage course data, add grades, print certificates, and more. The whole program is accessible by a simple browser. It is currently only available in German.
Parsec is a monadic parser combinator library for Haskell. It can parse context-sensitive, infinite look-ahead grammars but performs best on predictive (LL) grammars. The parser definition is in the same language as the rest of the program, so it benefits from type checking and existing development tools. Parsers are first-class values within the language and it is easy to extend the set of parsers with custom-made ones.
TapeChanger::MTX is a module to manipulate a tape library using the 'mtx' tape library program. It is meant to work with a simple shell/Perl script to load and unload tapes as appropriate, and to provide an interface for more complicated programs to do the same. It comes with a few basic scripts to use much of the functionality of the module.
PMilter implements Sendmail's "milter" mail filtering protocol in Perl, allowing scripts direct access to the SMTP transaction in progress, rather than filtering later. It can function as a drop-in replacement for Sendmail::Milter, though PMilter does not require threads or the "libmilter" API to be available.
snip is an Ant task designed to help with the single-sourcing of program documentation. This task extracts snippets of text from files, placing them into properties in the Ant project. These properties can then be used by any other Ant task, and are particularly useful when referenced by <filter>s within the <copy> task. It was originally written to keep snippets of sample code in API documentation synchronized with the actual sample classes by automatically extracting code from the samples when the project is built.