Open Source Library Software
Open Source software is software that is licensed under one of several Open Source licenses such as BSD, GNU General Public, GNU Lesser General Public, Mozilla Public, and others. Whether they know it or not, every library uses some Open Source software. Linux, Apache Web Server, OpenOffice, GIMP, Audacity, and Firefox are examples of Open Source software many libraries use.
In the last several years, two Open Source Library System products have also gained in popularity: Koha and Evergreen. Both are integrated library system (ILS) products and both are licensed under a GNU General Public license.
