OLACOnline Audiovisual Catalogers. "Founded in 1980, OLAC is an organization for catalogers concerned with all types of nonprint materials, including a wide range of digital resources as well as more “traditional” formats: video and sound recordings, websites, maps, multimedia, graphic materials, and realia. Through conferences, workshops, publications, and the electronic discussion list, catalogers exchange information and enjoy expert and practical advice on cataloging audiovisual resources. OLAC became an ALA affiliate in 2008."