Caveats
Information Vis =/= Scientific Vis
Some words are worth 1000’s of pictures.
Information visualizations illustrate specific and basic relationships (frequencies, low-order linkages, few variables) and support inferences about complex relationships.
Semantics must be mapped to visual attributes (size, position, color, shape, motion) and people must learn these mappings
3D ?>? 2D (unclear whether the additional dimension is worth the costs)