Tableau Charts
Tableau is a desktop application designed to help people see and understand data. It provides a variety of training options to help users get the most out of their data. Only Tableau Public is freeware.
Bubble Chart
A bubble chart is a type of chart that displays three dimensions of data. Each entity with its triplet (v1, v2, v3) of associated data is plotted as a disk that expresses two of the vi values through the disk's xy location and the third through its size.
Gauge Chart
One or more gauges are rendered within the browser using SVG or VML.
Geo Chart
A Geochart is a map of a country, a continent, or a region with two modes: