A few years ago I met people behind many-eyes visualization project from IBM. Today, inspired by other things I have seen in the labs I decided to see what their site (http://manyeyes.alphaworks.ibm.com) has been up to. Always consumed by price of housing, I ended up comparing a larger number of cities by size and housing affordability (how many average incomes it takes to buy an average house).
Suddenly, New York looks pretty good.
In case you just want to go straight into the visualization, click here – http://manyeyes.alphaworks.ibm.com/manyeyes/visualizations/house-prices-to-income-ratio