Abstract: The present invention teaches methods for applying network graphing to visualization of all types of data and to human collaborative interaction. This method overcomes several limitations of prior art by allowing interactive manipulation and editing of large graphs in their entirety, by allowing rich content including video and text, by allowing real-time collaboration by a plurality of users, and by including Undo/Redo functionality. The entirety of the disclosure may be applied to hierarchically-structured graphs and data, non-hierarchically-structured graphs and data, free-form graphs and data, or any combination thereof. In addition, the present invention teaches methods for numerous user interface enhancements for editing, viewing and manipulation of graphical depictions of data.