Multi-faceted relationship hubs can support browsing an extensible set of relationship types from within a single tool window. A user can switch between relationship types within a single tool window without disrupting user flow by having to change context in a plurality of tool windows. Multiple instances of relationship hubs can be created. Browsing navigation history can be stored, allowing a user to maintain and reacquire relationship contexts. A user can preview the content of one or more files without opening the file.