1. A file system shell browser defined by computer executable instructions stored on one or more computer readable media, said file system shell browser navigable by a user to manage a plurality of data items, said file system shell browser comprising: a page space control navigable by the user to identify a first set of data items having a common metadata; a virtual address bar identifying a virtual location of the first set of data items; a primary view pane presenting a first display of the first set of data items; a preview pane presenting information corresponding to a user-selected one of the first set of data items.