icture the traditional artist’s studio-a room where the artist paints with oils or molds clay to express his inner vision. Now consider the digital world. Here, an artist makes art by sitting at a computer and manipulating code.

This relatively new phenomenon-known as net art-now appears on thousands of Web sites run by artists. Museums and galleries are exhibiting net art in physical and online spaces. Major institutions-including the San Francisco Museum of Modern Art, the Berkeley Art Museum, the Museum of Modern Art, the Solomon R. Guggenheim Museum, the Whitney Museum of American Art, New York’s Dia Center for the Arts, and the Walker Art Center-are commissioning, collecting, and promoting net art. And creators and curators alike are starting to struggle with issues of ownership and copyright for a form of art that ignores old parameters.