Here is an analysis and some graphics using googleVis on high school graduation rates in the United States.
A report from the US Deparment of Education on increasing high school graduation rates was published earlier this year (Jan 2013) and some summary graphics were shown on the Department’s blog (http://www.ed.gov/blog/2013/01/high-school-graduation-rate-at-highest-level-in-three-decades). However, the above blog only shows one static map.
Here is my attempt to do it better using R, googleVis and Rmarkdown - http://rpubs.com/RationShop/afgr
All relevant files are on my GitHub site - https://github.com/RationShop/afgr