The Coherent PDF Command Line Toolkit provide a robust, professional set of tools for manipulating PDF files. The operations it offers includes split and merge, linearize, encrypt, scale, rotate, crop, bookmark, stamp, watermark, annotate, attach, and much more. It's based on the camlpdf library.
Hydro is an independent implementation of ICE, the object-oriented RPC protocol by ZeroC, for the O'Caml programming language. Hydro (like ICE) allows you to bridge language barriers by letting components written in different programming languages communicate with each other. ZeroC's ICE product currently includes implementations for C++, Java, C#, Python, Ruby, VB, and PHP. Hydro adds support for O'Caml. Hydro includes an asynchronous runtime and a generator called hydrogen.
Ocsigen is a research project aiming at developing new programming techniques for the Web. It contains a full featured Web server and a programming framework that provides a way to create dynamic Web sites. Its goal is to offer an alternative to Apache/PHP, based on technologies from research in programming languages. There is also a module, called Eliom, for generating dynamic Web pages. With Eliom, you program in a concise and modular way, with a strong type system which helps you to produce valid XHTML. The server handles sessions, URLs, and page parameters automatically.
Nurpawiki is a personal information manager (PIM) application that combines a wiki, a to-do list, and a simple scheduler to help you get organized. It aims to ease note taking and action planning. Actions (to-dos) are always associated with notes or plans (wiki pages). The application will be extended for multiple users in the future to help organizing small team development.