The OECD recently announced a new version of its OECD eXplorer [stats.oecd.org], a well concieved and useful web-tool for analyzing regional statistics. The new online geographic visualization focuses on regional and state, has a range of powerful features, and a very useful and attractive user interface.
The data is based on OECD Regional Database, containing 30 indicators measuring demography, economic and labour market performance, education, healthcare, environmental outputs and knowledge-based activities.
The tool lets you view trends over time through animation, explore the structure of regional economies through a scatterplot and a parallel coordinate panel, presenting very compelling stories bout the statistics through interactive visualization. You can even load and explore your own data, write your own stories and share them with others.