The other evening I came across the US Census data for 1910-2010. Even though I have worked with population data before, this one was hard to pass by. The data is available in Visualizing.org site under "Eyeo Data Visualization Challenge" and it does include some nice flash charts to review, compare and analyze the Decennial Census Data.
I've excluded Puerto Rico from my list of State, Regions and outlying territories as it doesn't belong to any of the four census regions of USA.
For Pick A State, I've used a data validation list. Just didn't want a combo box sitting amid my nicely formatted dynamic labels.