Foswiki is wiki software, supporting the editing of Web pages in an ordinary Web browser by end users. What makes Foswiki special is that it supports the embedding of active and passive macros that enhance the page content (e.g. with global or dynamic information) and allow end-users to build applications that store and process data in a structured manner.
Piggydb is a flexible and scalable knowledge building platform that supports a heuristic or bottom-up approach to discover new concepts or ideas based on your input. You can begin with using it as a flexible outliner, diary or notebook, and as your database grows, Piggydb helps you to shape or elaborate your own knowledge. Piggydb is a Web application provided as a self-contained package that contains a Web server and database engine.
Synoptic is "GMail for your notes", meant to keep and categorize a large number of smallish notes and tidbits of information. Tagged overviews that retain order make it easy to maintain a good overview of your things. Adaptive tag clouds plus integration with browser bookmarks and forward/back navigation allow for easy navigation. Written in pure Python, it runs as a local Web server.
The Spiffy Framework is a collection of well-tested and often used helper methods and utility classes. Such methods and classes solve existing and recurring practical problems, and remedy annoying features of the Java language or its frameworks. The value of this framework is not only the code, but also the ideas for solutions to the problems. The goals are to collect and centralize "utility abstractions", and to serve as a repository of knowledge/smart ideas for programmers to learn.
xhtml2pdf converts HTML/XHTML/XHML to PDF using the ReportLab Toolkit, the HTML5lib, and pyPdf. It supports HTML 5 and CSS 2.1 (and some of CSS 3). The main benefit of this tool that a user with Web skills like HTML and CSS is able to generate PDF templates very quickly without learning new technologies.
The PKP Open Archives Harvester is a free metadata indexing system intended to expand and improve access to research. The PKP OAI Harvester allows you to create a searchable index of the metadata from Open Archives Initiative (OAI)-compliant archives, such as sites using Open Journal Systems (OJS) or Open Conference Systems (OCS).
CryptoCD is a collection of user-friendly documentation for software that provides secure communication through the Internet. The programs cover tasks like email encryption, secure chat, and anonymous Web browsing. CryptoCD comes with comprehensive documentation explaining step by step installation and use of the software for inexperienced users. At the moment, the documentation is only available in German.