http://www.cdc.gov/diabetes/atlas/obesityrisk/51/atlas.html
This is an intersting map of diabetes in the stae of Vriginia to the right of the map are shapes that move as well as change color as time moves. Each of the cirlces is graduated based on the population of the coutny the represtent. In addition, they ahve roll over effects that highlight them on the other chart as well as on the map nad provides a text box with information on that county.