PUBLIC MARKS from clochix with tags engine & floss

OpenWFE is an Open source WorkFlow Engine, released under a BSD license. It's written in Java but features access libraries for languages such as Python, Perl, Ruby, C# (.NET), PHP and pnuts.

List of Java based workflow engines

Sphinx is a full-text search engine, distributed under GPL version 2. Generally, it's a standalone search engine, meant to provide fast, size-efficient and relevant fulltext search functions to other applications. Sphinx was specially designed to integrate well with SQL databases and scripting languages. Currently built-in data sources support fetching data either via direct connection to MySQL, or from an XML pipe.

OpenCyc is the open source version of the Cyc technology, the world's largest and most complete general knowledge base and commonsense reasoning engine. OpenCyc can be used as the basis of a wide variety of intelligent applications such as: * rapid development of an ontology in a vertical area * email prioritizing, routing, summarization, and annotating * expert systems * games