About the Map visualization: I think it's a really interesting feature. But the way it is displayed, whether in "bubbles" or "heatmap", is not practical to use. When zooming or unzooming, you never get to display correctly what you want...
It seems to me that this data is based on GeoSegmentation in the same way as the "countries", "regions", cities "," Zip code "," US States "and" US DMA "dimensions.
So why could not we have these dimensions in a map? (a map with countries, regions, US states or zip codes that would be delimited by their borders)