1. A system comprising: a media content processing subsystem configured to successively display a plurality of history tabs configured to graphically represent and facilitate access to a corresponding plurality of hierarchical representations within a browsing thread; and collapse at least two of said history tabs into an expandable history tab after a pre-determined number of said history tabs are displayed; wherein said expandable history tab is configured to graphically represent and facilitate access to a plurality of said hierarchical representations within said browsing thread.