D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
Google Maps - Find local businesses, view maps and get driving directions in Google Maps.
Chart.js - Easy, object oriented client side graphs for designers and developers.
OpenStreetMap - OpenStreetMap is a map of the world, created by people like you and free to use under an open license.
Google Charts - Interactive charts for browsers and mobile devices.
Leaflet - Leaflet is a modern, lightweight open-source JavaScript library for mobile-friendly interactive maps.