Powered by Lucene

NoteCat
NoteCat is a web-based application to manage and categorize Wiki notes with user registration and access control. NoteCat demonstrates integration with Hibernate (object-relational persistence) , Lucene (full text search), Radeox (wiki engine), etc.

Entreprise Smart Index Engine
This projects implements a complete entreprise solution based on lucene. It’s a smart engine implemented to index numerous files formats (pdf, ps, xls, doc, ppt, ). The engine can index file systems (filtering), databases, mailing folders, web sites and…

OJAX – Ajax powered metasearch service
OJAX provides – a meta-search service with a highly dynamic AJAX based user interface. – an OAI-PMH harvester to harvest multiple repositories to a single Lucene index – an easy to use, highly discoverable user interface to searching that index.

Kneobase
Kneobase is a Knowledge Management platform, based upon the Lucene search engine and the Spring framework. Allows to perform full-text searches across many different information sources. Highly adaptable out-of-the-box and extensible through new drivers

Este no usa Lucene pero me llamó la atención lo del RIS.

OnCite – online publications database
System for administering a public listing of a university’s research publications output, with plenty of online functions for academics and admin staff. Features include RIS export/import, OAI compliance, and PubMed integration. Uses PHP and MySQL.