Our World in Data, creators of the SDG-Tracker resources do a fantastic job of mapping and visualising global development data.
A rock star of the #datavis world, David McCandless's "Information is Beautiful" presents accessible, interactive and referenced visualisations of global issues, complex topics and big numbers. One key to successful datavis is making the hard-to-conceptualise visible.
Simon Kuestenmacher of the Demographics Group in Melbourne gathers and shares data visualisations from across the internet.
Plot.ly is a tool for building charts and datasets online. Click here to find out more, and see the interactive example below.