Getty Museum (Los Angeles): The press release for the exhibition Sherrie Levine/Joost van Oss: Sculpture Prototypes can be viewed here.
Marian Goodman Gallery (New York): This gallery used to represent Sherrie, though there is no mention of her on their site.
Metro Pictures Gallery (New York): One of the first galleries to represent Sherrie, this gallery is home to Cindy Sherman, Louise Lawler and Robert Longo, and many others. Note- site only contains contact information.
Museum of Contemporary Art, Los Angeles: Has pictures of two of the Untitled silhouettes and La Fortune (after Man Ray: 2).
XXIV Sao Paulo Biennial: Pictures of nine works from 1993-5.
Walker Art Center: A biography and a "zoomable" picture of Fountain (after Marcel Duchamp).