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VuFind® is a library resource discovery 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 library's resources by replacing the traditional OPAC.
ABCD is a Free and Open Source Software designed to support knowledge communities. The software is targeting libraries of universities and research institutes as well as smaller public libraries, documentation centra, musea and archives.
MGB is a free OpenSource Guestbook completely written in PHP, using JavaScript and a MySQL Database. Easy to use, flexible and customizable with templates to make it fit 100% to your homepage.
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Fork of Version 0.61: The Original Version is at https://sourceforge.net/projects/obiblio. OpenBiblio is an easy to use, automated library system written in PHP containing OPAC, circulation, cataloging, and staff administration functionality.