Arabic Collections Online (ACO) is a collaborative project by libraries at Columbia, NYU, Cornell and American University in Beirut to digitize and make freely available Arabic books online. The project now includes over 400 books on Arabic language, literature and Islamic history and culture. The goal is to digitize ca. 15,000 titles from partnering libraries, including 4,000 from Columbia University Libraries.

See:  List of 203 recently digitized Arabic books from Columbia University collection.