Invenio!

VuFind is a library resource portal designed and developed for libraries by libraries. The goal of VuFind is to enable your users to search and browse through all of your librarys resources by replacing the traditional OPAC to include:- Catalog Records - Digital Library Items- Institutional Repository- Institutional Bibliography- Other Library Collections and Resources

DSpace open source software enables open sharing of content that spans organizations, continents and time.Open source Institutional Repository software.

Fedora (Flexible Extensible Digital Object Repository Architecture) was originally developed by researchers at Cornell University as an architecture for storing, managing, and accessing digital content in the form of digital objects inspired by the Kahn and Wilensky Framework. Fedora defines a set of abstractions for expressing digital objects, asserting relationships among digital objects, and linking "behaviors" (i.e., services) to digital objects.

Greenstone is a suite of software tools for building and distributing digital library collections on the Internet or CD-ROM. It is open-source, multilingual software, issued under the terms of the GNU General Public License. Greenstone is produced by the New Zealand Digital Library Project at the University of Waikato, and has been developed and distributed in cooperation with UNESCO and the Human Info NGO in Belgium.

Ambra is an innovative Open Source platform for publishing Open Access research articles. It provides features for post-publication annotation and discussion that allows for a "living" document around which further scientific discoveries can be made. The platform is in active development by the PLOS (Public Library of Science) and is licensed under the Apache License, Version 2.0.

EPrints supports research papers, theses, teaching materials, arts and more.

Evergreen is a highly-scalable software for libraries that helps library patrons find library materials, and helps libraries manage, catalog, and circulate those materials, no matter how large or complex the libraries.

Repository of Authentic Digital Objects