Remote collaboration technologies frequently provide a shared visual workspace of the task at hand, but often lack support for the visual cues and work practices of co-located collaboration. This is particularly acute in design tasks, in which the shared workspace is the focus of collaboration. Lately there has been growing interest in remote tabletop interfaces: large horizontal interactive surfaces that provide shared workspaces for remote collaboration. These interfaces may afford some of the cues and beneficial work practices associated with collaboration at conventional tables. If so, they may offer benefits over other remote collaboration technologies. However, while a number of remote tabletop interfaces have been constructed, there are few empirical findings around these interfaces in practice. This chapter reviews current work in remote tabletop interfaces and then presents an exploratory study investigating two work practices in remote tabletop collaboration.