Google Data Explorer
This interactive tool developed by Google offers a large amount of data, ranging from databases on public debt in Europe (in the screenshot) to education statistics in California. It is fully flexible so the user can select can choose between line, char graphs and maps, as well as the contextual information to be displayed.
Interactive chart enabling users to explore interactions between ethnicity, gender, type of abuse and likelihood of being a victim of child abuse. Values can be displayed using bars, bubbles, colours and position on the chart.