Glossword is a system to create and publish online multilingual dictionary, glossary, or encyclopedia. Suits for creating web sites also. WAMP [Windows, Apache, MySQL, PHP] package is available.
Xuse manages requirements, use cases & other artefacts that drive software design. Xuse focuses on clear documentation & communication. It defines an XML data model for requirements & use cases with XSLT providing multiple derived views: HTML/SVG/PDF.
Note there is no GUI for entering requirements, however another project (https://sourceforge.net/projects/xguse/) will provide a GUI.
BibTeXlipse is an Eclipse plugin for managing and analyse bibliography databases. Mainly for BibTeX databases, but will import and export many other bibliographic formats.
It's currently in planning phase.