Cool Maps: Where Each State's Population Comes From

This map (details visible as you mouse-over all the details on each state) is a fascinating piece of data visualization, as well as showing off some interesting demographic data. I am now one of the less than 1% of Ohioans who was born in California. (Indeed, at 75% Ohio has one of the highest percentages of natives in the country.) For a while, I was one of the 3% of Texans who was born in California. Louisiana appears to have the highest percent of natives (79%) while Nevada has the lowest at 25%

For some related interesting data visualization, here's a historical view of where people from each state went to or came from. I'm part of the 25% of native Californians who has left the state, and the only 3% who have gone to the Midwest.