TouchGraph provides a set of interfaces for graph visualization using force-based layout and focus+context techniques. For now only older code is available, but we are planning to release new versions as well.
Lucene Server is a java server application for simply create and manage Jakarta Lucene Indexes. It is designed to help you integrate Lucene in distributed environnements.
Syncato is a Weblog Web Services system built on top of Berkeley DB XML, Webware and Python. It has a number of unique features; XPath access to all content via URLs, XSL-T presentation and extremely flexible database structure.
TM4J is a topic map engine implemented entirely in Java. Topic maps are a standard paradigm for the interchange of knowledge structures. This project aims to produce a complete suite of tools for creating, processing and publishing topic map information.
A configurable knowledge management framework. It works out of the box, but it's meant mainly as a framework to build complex information retrieval and analysis systems. The 3 major components: Crawler, Analyzer and Indexer can also be used separately.
The "mimor" project is a Java-based software project to implement a meta search engine system that relies on relevance feedback data in order to improve the quality of the retrieved documents based on query, user and document parameters.