current google news presented nicely in a tree map

Visualization toolkit for Javascript

GGobi is an open source visualization program for exploring high-dimensional data. It provides highly dynamic and interactive graphics such as tours, as well as familiar graphics such as the scatterplot, barchart and parallel coordinates plots. Plots are interactive and linked with brushing and identification.

NodeBox is a Mac OS X application that lets you create 2D visuals (static, animated or interactive) using Python programming code and export them as a PDF or a QuickTime movie. NodeBox is free and well-documented.

Examples for usage of Google's APIs, which can be edited and executed live in the browser.

Worldmapper is a collection of world maps, where territories are re-sized on each map according to the subject of interest.