WikiPDF is a mediawiki extension based on Wiki2PDF that adds PDF/LaTeX features to mediawiki. Wiki2PDF is a python script to convert multiple articles of a mediawiki based wiki (pre-configured to use with www.wikipedia.org) to a single LaTeX or PDF file.
Yabman is a tool for managing bibliographic references. Its key features are a quality user interface, a carefully designed data model, and sophisticated three-state hierarchical reference labeling. It is currently usable but in a pre-alpha stage.