 There are many kinds of net art, including various forms of experimental on-line literature, conceptual browser art, and works drawing on software and computer gaming conventions. Extensive on-line collections of visual and audiovisual net art are rigorously curated and at the same time immediately accessible to ordinary Internet users. The contrast is striking, between the conventions of access and presentation, for works of net art and for works like those by Kalpakjian, and Arcangel &amp; Davis. Perhaps a digital artwork comprising multiply instantiable images need not itself be multiply instantiable. At this point, in considering the factors determining the status of a digital visual artwork, the philosophy of digital art joins an ongoing debate about the ontology of art.