OPALS

-OPAC, Cataloging, Circulation, Database authentication, eBook management, Asset & Textbook management... OPALS Open-source Automated Library System is feature-rich, cooperatively developed, Web-based, open source, providing access to information databases, library & digital collections.... Over 2700 school, academic, church, public, business and cooperative regional union catalog collections use OPALS. OPALS open is supported by highly-acclaimed full-time programmers & technicians.