Greenstone: Collection management for digital works

The Greenstone Digital Library Software is a comprehensive package for creating, maintaining, presenting and disseminating collections of digital resources (http://www.greenstone.org/, [10]). Greenstone collections offer effective full-text searching and metadata-based browsing facilities that are attractive and easy to use, and a user-friendly interface called The Collector makes it easy for people to assemble their own library collections from disparate source documents. To address the exceptionally broad demands of digital libraries, the system is public and extensible: it is distributed under the terms of the GNU General Public License and users are encouraged to contribute modifications and enhancements.