A matter of shape
I have been using Mathematica to extract information from ESRI shapefiles (shp).
An example is shown below. A dataset was used to color postcode districts. The tooltips in HTML are not as flexible as Mathematica (based on rectangle). The segmentation (polygons) are based on postcodes. The names in the tooltips are based on postal distribution centre. The source of the shapefile was the Australian Bureau of Statistics (freely available).