http://www.nps.gov/cham/forteachers/Flip-Book.htm
This is an interesting flipbook map as it shows the change of the Rio Grande in a specific area over time. The Rio Grande serves as part of the established border between Mexico and The United States of America. So it's interesting to see how a national border goverened by a river can change it's location over time as the course of th river changes over time.
This is a map of the percent of each state's population that has a bachelor's degree and is 25 years of age and over. It was gotten from the state quick facts from the 2010 US Census. I just found it interesting data to observe . Washington, DC is left out as it has value of 50% and is an extreme outlier, and it is not easily seen at this scale. As for the 50 states, the highest value is 38.7% in Massachustes and the lowest is 17.6%. For the purposes of actually making the map those were represented as 18% and 39% rounding to the nearest whole. The class breaks results in a rougly normal distribution of the data with 5 sates in the lowest class of 18-21%, 13 in the 22-25% class, 15 in the 26-29% class, 10 in the 30-33% class, and 7 sates over 33%. The methodolgy for finding the class break down was calcuated by finding the range and dividing by the five classes wanted and rounding the numbers to the nearest whole resulting a class range of 4% for all classes except for the higest class which was all percentages over the upper limit of the second highest class. With that breakdown the data happened to end up normally distributed which was nice.
Here's the link: http://flowingdata.com/2013/01/29/nfl-fans-on-facebook-based-on-likes/#more-2...
Interesting and relevant choropleth map, it uses county level data based on likes of NFL team Facebook page likes. It’s relevant due to the time of year the Super Bowl is tomorrow. It’s also interesting to see where all the likes are for all 32 teams including Alaska and Hawaii. Then you get to see the two Super Bowl contenders, and it’s amusing to see that in New England Patriots country there’s a lot of hating on the Ravens going on there.