PMB has most of the functional modules essential for a library management system including Circulation; Cataloguing; Reports; Selective Dissemination of Information Service; Administration and Acquisition. It has friendly web interfaces for librarian and users and supports UNIMARC and Z39.50 standards. Some other features include - Barcode Generator; Multi Language Support and Import and export of bibliographic records in different formats.
Some other Open Source Softwares for libraries are Koha, OpenBiblio, PhpMyLibrary and NewGenLib. One can also frequently check OSS4Lib. It is a useful resource for Open Source systems for libraries.