With 20 exhibitions and 300 events a year, the Hammer Museum needed an intuitive and elegant visitor interface powered by a robust content management system. During the design phase, Surface Streets worked with the Hammer to establish a distinguished visual style, uncover user motivations and identify publishing needs. The initial architecture supports past, present and upcoming exhibitions, searchable online collections, a sophisticated programming section, and easily discoverable information about the organization. As a second phase, we added an Expanded Digital Archive that allows the Hammer to publish artwork, essays, and ephemera from past exhibitions that would have otherwise been inaccessible.