The Classical Works Knowledge Base (CWKB) is a database that permits users of online resources in the Classics to link from citations of Classical works to online editions of ancient texts. The American Philological Association (APA) is the owner of the CWKB. In collaboration with Cornell University the APA created the CWKB with the support of a generous grant from the Andrew W. Mellon Foundation. Noncommercial, educational, charitable, and scholarly users may use, reproduce or display all or part of the CWKB for teaching or scholarly purposes; on a projection, computer or television screen; in classroom materials; or in other scholarly or teaching devices without incurring a publication or usage fee.