Investigate TileMill 2 & vector tiles

[Ben Wyss]

Vector tiles rethink web maps from the ground up, providing a single efficient format to power raster tiles, interactive features, geojson streams, mobile renderers, and much more. It could be very beneficial to investigate this and Tilemill 2:
http://www.mapbox.com/blog/vector-tiles/

http://en.wikipedia.org/wiki/Protocol_Buffers
https://github.com/mapbox/mapnik-vector-tile
https://github.com/mapbox/tm2

In addition Leaflet.utfgrid is an alternative to Leaflet Wax for building interactivity into a web mapping application. It might be worth looking into:
https://github.com/danzel/Leaflet.utfgrid

highcharts might be a nice choice for chart visualization
http://www.highcharts.com/